774047904 has 144 divisors (see below), whose sum is σ = 2404533600. Its totient is φ = 217330176.

The previous prime is 774047891. The next prime is 774047909. The reversal of 774047904 is 409740477.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (774047909) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 276142 + ... + 278930.

It is an arithmetic number, because the mean of its divisors is an integer number (16698150).

Almost surely, 2^774047904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774047904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1202266800).

774047904 is an abundant number, since it is smaller than the sum of its proper divisors (1630485696).

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

774047904 is a wasteful number, since it uses less digits than its factorization.

774047904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2860 counting only the distinct ones).

The product of its (nonzero) digits is 197568, while the sum is 42.

The square root of 774047904 is about 27821.7164100276. The cubic root of 774047904 is about 918.1689732198.

The spelling of 774047904 in words is "seven hundred seventy-four million, forty-seven thousand, nine hundred four".