72087450 has 24 divisors (see below), whose sum is σ = 178777248. Its totient is φ = 19223280.

The previous prime is 72087403. The next prime is 72087461. The reversal of 72087450 is 5478027.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 240142 + ... + 240441.

It is an arithmetic number, because the mean of its divisors is an integer number (7449052).

Almost surely, 2^72087450 is an apocalyptic number.

72087450 is an abundant number, since it is smaller than the sum of its proper divisors (106689798).

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

72087450 is a wasteful number, since it uses less digits than its factorization.

72087450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480598 (or 480593 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 72087450 is about 8490.4328511566. The cubic root of 72087450 is about 416.1851254756.

The spelling of 72087450 in words is "seventy-two million, eighty-seven thousand, four hundred fifty".