74497320 has 80 divisors (see below), whose sum is σ = 250404660. Its totient is φ = 19865088.

The previous prime is 74497289. The next prime is 74497331. The reversal of 74497320 is 2379447.

It can be written as a sum of positive squares in 2 ways, for example, as 73719396 + 777924 = 8586^2 + 882^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8257 + ... + 14736.

Almost surely, 2^74497320 is an apocalyptic number.

It is an amenable number.

74497320 is an abundant number, since it is smaller than the sum of its proper divisors (175907340).

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

74497320 is a wasteful number, since it uses less digits than its factorization.

74497320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23016 (or 23003 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 74497320 is about 8631.1830011882. The cubic root of 74497320 is about 420.7720493273.

The spelling of 74497320 in words is "seventy-four million, four hundred ninety-seven thousand, three hundred twenty".