73165940 has 12 divisors (see below), whose sum is σ = 153648516. Its totient is φ = 29266368.

The previous prime is 73165933. The next prime is 73166029. The reversal of 73165940 is 4956137.

It can be written as a sum of positive squares in 2 ways, for example, as 16434916 + 56731024 = 4054^2 + 7532^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73165940.

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 3 ways as a sum of consecutive naturals, for example, 1829129 + ... + 1829168.

It is an arithmetic number, because the mean of its divisors is an integer number (12804043).

Almost surely, 2^73165940 is an apocalyptic number.

It is an amenable number.

73165940 is an abundant number, since it is smaller than the sum of its proper divisors (80482576).

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

73165940 is a wasteful number, since it uses less digits than its factorization.

73165940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3658306 (or 3658304 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 35.

The square root of 73165940 is about 8553.7091369768. The cubic root of 73165940 is about 418.2503555821.

The spelling of 73165940 in words is "seventy-three million, one hundred sixty-five thousand, nine hundred forty".