73294640 has 20 divisors (see below), whose sum is σ = 170410224. Its totient is φ = 29317824.

The previous prime is 73294603. The next prime is 73294651. The reversal of 73294640 is 4649237.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 73294640.

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, 458012 + ... + 458171.

Almost surely, 2^73294640 is an apocalyptic number.

It is an amenable number.

73294640 is an abundant number, since it is smaller than the sum of its proper divisors (97115584).

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

73294640 is a wasteful number, since it uses less digits than its factorization.

73294640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916196 (or 916190 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 73294640 is about 8561.2288837526. The cubic root of 73294640 is about 418.4954481742.

The spelling of 73294640 in words is "seventy-three million, two hundred ninety-four thousand, six hundred forty".