1379782431 has 24 divisors (see below), whose sum is σ = 2110827264. Its totient is φ = 900276120.

The previous prime is 1379782421. The next prime is 1379782457. The reversal of 1379782431 is 1342879731.

1379782431 is a `hidden beast` number, since 137 + 9 + 7 + 82 + 431 = 666.

It is not a de Polignac number, because 1379782431 - 2⁵ = 1379782399 is a prime.

It is a super-2 number, since 2×1379782431² = 3807599113792539522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1379782421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48985 + ... + 71826.

It is an arithmetic number, because the mean of its divisors is an integer number (87951136).

Almost surely, 2^1379782431 is an apocalyptic number.

1379782431 is a deficient number, since it is larger than the sum of its proper divisors (731044833).

1379782431 is an equidigital number, since it uses as much as digits as its factorization.

1379782431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120873 (or 120861 counting only the distinct ones).

The product of its digits is 254016, while the sum is 45.

The square root of 1379782431 is about 37145.4227462819. The cubic root of 1379782431 is about 1113.2777693972.

The spelling of 1379782431 in words is "one billion, three hundred seventy-nine million, seven hundred eighty-two thousand, four hundred thirty-one".