7474639936 has 63 divisors (see below), whose sum is σ = 15122114917. Its totient is φ = 3665734400.

The previous prime is 7474639897. The next prime is 7474639943. The reversal of 7474639936 is 6399364747.

The square root of 7474639936 is 86456.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 7181545536 + 293094400 = 84744^2 + 17120^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 69856395 + ... + 69856501.

Almost surely, 2^7474639936 is an apocalyptic number.

7474639936 is the 86456-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7474639936

7474639936 is an abundant number, since it is smaller than the sum of its proper divisors (7647474981).

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

7474639936 is an equidigital number, since it uses as much as digits as its factorization.

7474639936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428 (or 210 counting only the distinct ones).

The product of its digits is 20575296, while the sum is 58.

The cubic root of 7474639936 is about 1955.2250782300.

The spelling of 7474639936 in words is "seven billion, four hundred seventy-four million, six hundred thirty-nine thousand, nine hundred thirty-six".