74550400 has 48 divisors (see below), whose sum is σ = 184170690. Its totient is φ = 29818880.

The previous prime is 74550379. The next prime is 74550403. The reversal of 74550400 is 405547.

It can be written as a sum of positive squares in 3 ways, for example, as 38837824 + 35712576 = 6232^2 + 5976^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (74550403) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 8449 + ... + 14848.

Almost surely, 2^74550400 is an apocalyptic number.

It is an amenable number.

74550400 is an abundant number, since it is smaller than the sum of its proper divisors (109620290).

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

74550400 is a wasteful number, since it uses less digits than its factorization.

74550400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23321 (or 23304 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 25.

The square root of 74550400 is about 8634.2573508090. The cubic root of 74550400 is about 420.8719602053.

Adding to 74550400 its reverse (405547), we get a palindrome (74955947).

The spelling of 74550400 in words is "seventy-four million, five hundred fifty thousand, four hundred".