72002072 has 32 divisors (see below), whose sum is σ = 143460720. Its totient is φ = 33761280.

The previous prime is 72002053. The next prime is 72002087. The reversal of 72002072 is 27020027.

72002072 is a modest number, since divided by 2072 gives 72 as remainder.

It is a congruent number.

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, 45047 + ... + 46617.

Almost surely, 2^72002072 is an apocalyptic number.

It is an amenable number.

72002072 is a deficient number, since it is larger than the sum of its proper divisors (71458648).

72002072 is a wasteful number, since it uses less digits than its factorization.

72002072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1931 (or 1927 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 20.

The square root of 72002072 is about 8485.4034671311. The cubic root of 72002072 is about 416.0207552514.

Adding to 72002072 its reverse (27020027), we get a palindrome (99022099).

The spelling of 72002072 in words is "seventy-two million, two thousand, seventy-two".