73276640 has 24 divisors (see below), whose sum is σ = 173116440. Its totient is φ = 29310592.

The previous prime is 73276639. The next prime is 73276669. The reversal of 73276640 is 4667237.

It is a self number, because there is not a number n which added to its sum of digits gives 73276640.

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, 228830 + ... + 229149.

It is an arithmetic number, because the mean of its divisors is an integer number (7213185).

Almost surely, 2^73276640 is an apocalyptic number.

It is an amenable number.

73276640 is an abundant number, since it is smaller than the sum of its proper divisors (99839800).

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

73276640 is a wasteful number, since it uses less digits than its factorization.

73276640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457994 (or 457986 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 35.

The square root of 73276640 is about 8560.1775682517. The cubic root of 73276640 is about 418.4611867566.

The spelling of 73276640 in words is "seventy-three million, two hundred seventy-six thousand, six hundred forty".