780044472 has 32 divisors (see below), whose sum is σ = 2166790800. Its totient is φ = 260014752.

The previous prime is 780044453. The next prime is 780044483. The reversal of 780044472 is 274440087.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1805443 + ... + 1805874.

Almost surely, 2^780044472 is an apocalyptic number.

780044472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

780044472 is an abundant number, since it is smaller than the sum of its proper divisors (1386746328).

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

780044472 is a wasteful number, since it uses less digits than its factorization.

780044472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611332 (or 3611322 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 36.

The square root of 780044472 is about 27929.2762527066. The cubic root of 780044472 is about 920.5339024515.

The spelling of 780044472 in words is "seven hundred eighty million, forty-four thousand, four hundred seventy-two".