782460138 has 32 divisors (see below), whose sum is σ = 1647444096. Its totient is φ = 247267328.

The previous prime is 782460137. The next prime is 782460157. The reversal of 782460138 is 831064287.

It is a super-2 number, since 2×782460138² = 1224487735117958088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 782460096 and 782460105.

It is not an unprimeable number, because it can be changed into a prime (782460131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9495 + ... + 40682.

It is an arithmetic number, because the mean of its divisors is an integer number (51482628).

Almost surely, 2^782460138 is an apocalyptic number.

782460138 is an abundant number, since it is smaller than the sum of its proper divisors (864983958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

782460138 is a wasteful number, since it uses less digits than its factorization.

782460138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50318.

The product of its (nonzero) digits is 64512, while the sum is 39.

The square root of 782460138 is about 27972.4889489656. The cubic root of 782460138 is about 921.4831692321.

The spelling of 782460138 in words is "seven hundred eighty-two million, four hundred sixty thousand, one hundred thirty-eight".