774738432 has 240 divisors, whose sum is σ = 2502339840. Its totient is φ = 237883392.

The previous prime is 774738431. The next prime is 774738443. The reversal of 774738432 is 234837477.

774738432 is a `hidden beast` number, since 77 + 473 + 84 + 32 = 666.

It is not an unprimeable number, because it can be changed into a prime (774738431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1617169 + ... + 1617647.

It is an arithmetic number, because the mean of its divisors is an integer number (10426416).

Almost surely, 2^774738432 is an apocalyptic number.

774738432 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 774738432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1251169920).

774738432 is an abundant number, since it is smaller than the sum of its proper divisors (1727601408).

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

774738432 is an equidigital number, since it uses as much as digits as its factorization.

774738432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525 (or 497 counting only the distinct ones).

The product of its digits is 790272, while the sum is 45.

The square root of 774738432 is about 27834.1235177255. The cubic root of 774738432 is about 918.4419248628.

It can be divided in two parts, 77473 and 8432, that added together give a triangular number (85905 = T₄₁₄).

The spelling of 774738432 in words is "seven hundred seventy-four million, seven hundred thirty-eight thousand, four hundred thirty-two".