72073028 has 12 divisors (see below), whose sum is σ = 126431760. Its totient is φ = 35949672.

The previous prime is 72073021. The next prime is 72073051. The reversal of 72073028 is 82037027.

It is not an unprimeable number, because it can be changed into a prime (72073021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19826 + ... + 23177.

It is an arithmetic number, because the mean of its divisors is an integer number (10535980).

Almost surely, 2^72073028 is an apocalyptic number.

It is an amenable number.

72073028 is a deficient number, since it is larger than the sum of its proper divisors (54358732).

72073028 is a wasteful number, since it uses less digits than its factorization.

72073028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43426 (or 43424 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 72073028 is about 8489.5834997955. The cubic root of 72073028 is about 416.1573692702.

The spelling of 72073028 in words is "seventy-two million, seventy-three thousand, twenty-eight".