72003980 has 24 divisors (see below), whose sum is σ = 151368000. Its totient is φ = 28771200.

The previous prime is 72003949. The next prime is 72003989. The reversal of 72003980 is 8930027.

It is not an unprimeable number, because it can be changed into a prime (72003989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35021 + ... + 37019.

It is an arithmetic number, because the mean of its divisors is an integer number (6307000).

Almost surely, 2^72003980 is an apocalyptic number.

It is an amenable number.

72003980 is an abundant number, since it is smaller than the sum of its proper divisors (79364020).

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

72003980 is a wasteful number, since it uses less digits than its factorization.

72003980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3809 (or 3807 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 72003980 is about 8485.5158947468. The cubic root of 72003980 is about 416.0244299632.

The spelling of 72003980 in words is "seventy-two million, three thousand, nine hundred eighty".