780634532 has 12 divisors (see below), whose sum is σ = 1438011120. Its totient is φ = 369774216.

The previous prime is 780634523. The next prime is 780634549. The reversal of 780634532 is 235436087.

It is a Harshad number since it is a multiple of its sum of digits (38).

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, 5135678 + ... + 5135829.

It is an arithmetic number, because the mean of its divisors is an integer number (119834260).

Almost surely, 2^780634532 is an apocalyptic number.

It is an amenable number.

780634532 is a deficient number, since it is larger than the sum of its proper divisors (657376588).

780634532 is a wasteful number, since it uses less digits than its factorization.

780634532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10271530 (or 10271528 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 38.

The square root of 780634532 is about 27939.8377232224. The cubic root of 780634532 is about 920.7659547477.

The spelling of 780634532 in words is "seven hundred eighty million, six hundred thirty-four thousand, five hundred thirty-two".