72039074 has 16 divisors (see below), whose sum is σ = 114809400. Its totient is φ = 33836544.

The previous prime is 72039067. The next prime is 72039083. The reversal of 72039074 is 47093027.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60171049 + 11868025 = 7757^2 + 3445^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 72039074.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14639 + ... + 18930.

Almost surely, 2^72039074 is an apocalyptic number.

72039074 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

72039074 is a deficient number, since it is larger than the sum of its proper divisors (42770326).

72039074 is a wasteful number, since it uses less digits than its factorization.

72039074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33637.

The product of its (nonzero) digits is 10584, while the sum is 32.

The square root of 72039074 is about 8487.5835194713. The cubic root of 72039074 is about 416.0920076630.

The spelling of 72039074 in words is "seventy-two million, thirty-nine thousand, seventy-four".