1382487394 has 8 divisors (see below), whose sum is σ = 2094263388. Its totient is φ = 684399600.

The previous prime is 1382487389. The next prime is 1382487419. The reversal of 1382487394 is 4937842831.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1379156769 + 3330625 = 37137^2 + 1825^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1382487394² = 3822542789137822472, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3421797 + ... + 3422200.

Almost surely, 2^1382487394 is an apocalyptic number.

1382487394 is a deficient number, since it is larger than the sum of its proper divisors (711775994).

1382487394 is a wasteful number, since it uses less digits than its factorization.

1382487394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6844100.

The product of its digits is 1161216, while the sum is 49.

The square root of 1382487394 is about 37181.8153671926. The cubic root of 1382487394 is about 1114.0047945154.

The spelling of 1382487394 in words is "one billion, three hundred eighty-two million, four hundred eighty-seven thousand, three hundred ninety-four".