74290400 has 36 divisors (see below), whose sum is σ = 181363392. Its totient is φ = 29715840.

The previous prime is 74290393. The next prime is 74290429. The reversal of 74290400 is 409247.

It is a self number, because there is not a number n which added to its sum of digits gives 74290400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 45632 + ... + 47231.

It is an arithmetic number, because the mean of its divisors is an integer number (5037872).

Almost surely, 2^74290400 is an apocalyptic number.

It is an amenable number.

74290400 is an abundant number, since it is smaller than the sum of its proper divisors (107072992).

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

74290400 is a wasteful number, since it uses less digits than its factorization.

74290400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92883 (or 92870 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 74290400 is about 8619.1878967801. The cubic root of 74290400 is about 420.3821163416.

Adding to 74290400 its reverse (409247), we get a palindrome (74699647).

The spelling of 74290400 in words is "seventy-four million, two hundred ninety thousand, four hundred".