1383434261 has 6 divisors (see below), whose sum is σ = 1520634486. Its totient is φ = 1257667400.

The previous prime is 1383434203. The next prime is 1383434263. The reversal of 1383434261 is 1624343831.

It can be written as a sum of positive squares in only one way, i.e., 1081752100 + 301682161 = 32890^2 + 17369^2 .

It is not a de Polignac number, because 1383434261 - 2¹⁸ = 1383172117 is a prime.

It is a super-2 number, since 2×1383434261² = 3827780709017232242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1383434263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5716550 + ... + 5716791.

It is an arithmetic number, because the mean of its divisors is an integer number (253439081).

Almost surely, 2^1383434261 is an apocalyptic number.

1383434261 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1383434261 is a deficient number, since it is larger than the sum of its proper divisors (137200225).

1383434261 is a wasteful number, since it uses less digits than its factorization.

1383434261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11433363 (or 11433352 counting only the distinct ones).

The product of its digits is 41472, while the sum is 35.

The square root of 1383434261 is about 37194.5461190213. The cubic root of 1383434261 is about 1114.2590641406.

The spelling of 1383434261 in words is "one billion, three hundred eighty-three million, four hundred thirty-four thousand, two hundred sixty-one".