73642480 has 40 divisors (see below), whose sum is σ = 180234000. Its totient is φ = 27906048.

The previous prime is 73642477. The next prime is 73642501. The reversal of 73642480 is 8424637.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22705 + ... + 25744.

It is an arithmetic number, because the mean of its divisors is an integer number (4505850).

Almost surely, 2^73642480 is an apocalyptic number.

It is an amenable number.

73642480 is an abundant number, since it is smaller than the sum of its proper divisors (106591520).

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

73642480 is a wasteful number, since it uses less digits than its factorization.

73642480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48481 (or 48475 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 34.

The square root of 73642480 is about 8581.5196789380. The cubic root of 73642480 is about 419.1564323057.

The spelling of 73642480 in words is "seventy-three million, six hundred forty-two thousand, four hundred eighty".