1382426761 has 3 divisors (see below), whose sum is σ = 1382463943. Its totient is φ = 1382389580.

The previous prime is 1382426743. The next prime is 1382426779. The reversal of 1382426761 is 1676242831.

The square root of 1382426761 is 37181.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1676242831 = 33311 ⋅50321.

It is an interprime number because it is at equal distance from previous prime (1382426743) and next prime (1382426779).

It can be written as a sum of positive squares in only one way, i.e., 425143161 + 957283600 = 20619^2 + 30940^2 .

It is not a de Polignac number, because 1382426761 - 2¹⁵ = 1382393993 is a prime.

It is a super-2 number, since 2×1382426761² = 3822207499057902242, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1382426261) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 18591 + ... + 55771.

Almost surely, 2^1382426761 is an apocalyptic number.

1382426761 is the 37181-st square number.

1382426761 is the 18591-st centered octagonal number.

It is an amenable number.

1382426761 is a deficient number, since it is larger than the sum of its proper divisors (37182).

1382426761 is an frugal number, since it uses more digits than its factorization.

1382426761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74362 (or 37181 counting only the distinct ones).

The product of its digits is 96768, while the sum is 40.

The cubic root of 1382426761 is about 1113.9885083053.

The spelling of 1382426761 in words is "one billion, three hundred eighty-two million, four hundred twenty-six thousand, seven hundred sixty-one".