73905940 has 12 divisors (see below), whose sum is σ = 155202516. Its totient is φ = 29562368.

The previous prime is 73905913. The next prime is 73905941. The reversal of 73905940 is 4950937.

It can be written as a sum of positive squares in 2 ways, for example, as 18284176 + 55621764 = 4276^2 + 7458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 73905940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73905941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1847629 + ... + 1847668.

It is an arithmetic number, because the mean of its divisors is an integer number (12933543).

Almost surely, 2^73905940 is an apocalyptic number.

It is an amenable number.

73905940 is an abundant number, since it is smaller than the sum of its proper divisors (81296576).

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

73905940 is a wasteful number, since it uses less digits than its factorization.

73905940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3695306 (or 3695304 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 37.

The square root of 73905940 is about 8596.8564021973. The cubic root of 73905940 is about 419.6556890926.

The spelling of 73905940 in words is "seventy-three million, nine hundred five thousand, nine hundred forty".