72074988 has 24 divisors (see below), whose sum is σ = 186861360. Its totient is φ = 24024960.

The previous prime is 72074987. The next prime is 72075013. The reversal of 72074988 is 88947027.

It is not an unprimeable number, because it can be changed into a prime (72074983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333573 + ... + 333788.

It is an arithmetic number, because the mean of its divisors is an integer number (7785890).

Almost surely, 2^72074988 is an apocalyptic number.

It is an amenable number.

72074988 is an abundant number, since it is smaller than the sum of its proper divisors (114786372).

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

72074988 is a wasteful number, since it uses less digits than its factorization.

72074988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667374 (or 667366 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The square root of 72074988 is about 8489.6989345913. The cubic root of 72074988 is about 416.1611416525.

The spelling of 72074988 in words is "seventy-two million, seventy-four thousand, nine hundred eighty-eight".