73440572 has 6 divisors (see below), whose sum is σ = 128521008. Its totient is φ = 36720284.

The previous prime is 73440559. The next prime is 73440593. The reversal of 73440572 is 27504437.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9180068 + ... + 9180075.

It is an arithmetic number, because the mean of its divisors is an integer number (21420168).

Almost surely, 2^73440572 is an apocalyptic number.

It is an amenable number.

73440572 is a deficient number, since it is larger than the sum of its proper divisors (55080436).

73440572 is a wasteful number, since it uses less digits than its factorization.

73440572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18360147 (or 18360145 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 73440572 is about 8569.7474875284. The cubic root of 73440572 is about 418.7730100373.

The spelling of 73440572 in words is "seventy-three million, four hundred forty thousand, five hundred seventy-two".