774138472 has 16 divisors (see below), whose sum is σ = 1452261600. Its totient is φ = 386868720.

The previous prime is 774138419. The next prime is 774138493. The reversal of 774138472 is 274831477.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7972 + ... + 40147.

It is an arithmetic number, because the mean of its divisors is an integer number (90766350).

Almost surely, 2^774138472 is an apocalyptic number.

It is an amenable number.

774138472 is a deficient number, since it is larger than the sum of its proper divisors (678123128).

774138472 is a wasteful number, since it uses less digits than its factorization.

774138472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50136 (or 50132 counting only the distinct ones).

The product of its digits is 263424, while the sum is 43.

The square root of 774138472 is about 27823.3440118186. The cubic root of 774138472 is about 918.2047821511.

The spelling of 774138472 in words is "seven hundred seventy-four million, one hundred thirty-eight thousand, four hundred seventy-two".