72074040 has 64 divisors (see below), whose sum is σ = 216790560. Its totient is φ = 19169280.

The previous prime is 72074021. The next prime is 72074059. The reversal of 72074040 is 4047027.

It is an interprime number because it is at equal distance from previous prime (72074021) and next prime (72074059).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 72074040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76452 + ... + 77388.

Almost surely, 2^72074040 is an apocalyptic number.

It is an amenable number.

72074040 is an abundant number, since it is smaller than the sum of its proper divisors (144716520).

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

72074040 is a wasteful number, since it uses less digits than its factorization.

72074040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1592 (or 1588 counting only the distinct ones).

The product of its (nonzero) digits is 1568, while the sum is 24.

The square root of 72074040 is about 8489.6431020391. The cubic root of 72074040 is about 416.1593170598.

The spelling of 72074040 in words is "seventy-two million, seventy-four thousand, forty".