72003484 has 12 divisors (see below), whose sum is σ = 144007024. Its totient is φ = 30858624.

The previous prime is 72003479. The next prime is 72003509. The reversal of 72003484 is 48430027.

72003484 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 2571553 = 72003484 / (7 + 2 + 0 + 0 + 3 + 4 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1285749 + ... + 1285804.

Almost surely, 2^72003484 is an apocalyptic number.

It is an amenable number.

72003484 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

72003484 is a wasteful number, since it uses less digits than its factorization.

72003484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2571564 (or 2571562 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 72003484 is about 8485.4866684239. The cubic root of 72003484 is about 416.0234746985.

The spelling of 72003484 in words is "seventy-two million, three thousand, four hundred eighty-four".