74487400 has 48 divisors (see below), whose sum is σ = 186511500. Its totient is φ = 27502080.

The previous prime is 74487383. The next prime is 74487403. The reversal of 74487400 is 478447.

It can be written as a sum of positive squares in 6 ways, for example, as 12802084 + 61685316 = 3578^2 + 7854^2 .

It is not an unprimeable number, because it can be changed into a prime (74487403) 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 11 ways as a sum of consecutive naturals, for example, 11725 + ... + 16924.

Almost surely, 2^74487400 is an apocalyptic number.

It is an amenable number.

74487400 is an abundant number, since it is smaller than the sum of its proper divisors (112024100).

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

74487400 is a wasteful number, since it uses less digits than its factorization.

74487400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28678 (or 28669 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 34.

The square root of 74487400 is about 8630.6083215495. The cubic root of 74487400 is about 420.7533719484.

The spelling of 74487400 in words is "seventy-four million, four hundred eighty-seven thousand, four hundred".