747738400 has 36 divisors (see below), whose sum is σ = 1825418322. Its totient is φ = 299095040.

The previous prime is 747738391. The next prime is 747738419. The reversal of 747738400 is 4837747.

It can be written as a sum of positive squares in 3 ways, for example, as 628404624 + 119333776 = 25068^2 + 10924^2 .

It is a super-2 number, since 2×747738400² = 1118225429669120000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 466537 + ... + 468136.

Almost surely, 2^747738400 is an apocalyptic number.

It is an amenable number.

747738400 is an abundant number, since it is smaller than the sum of its proper divisors (1077679922).

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

747738400 is a wasteful number, since it uses less digits than its factorization.

747738400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934693 (or 934680 counting only the distinct ones).

The product of its (nonzero) digits is 131712, while the sum is 40.

The square root of 747738400 is about 27344.8057224768. The cubic root of 747738400 is about 907.6461324930.

The spelling of 747738400 in words is "seven hundred forty-seven million, seven hundred thirty-eight thousand, four hundred".