73263940 has 12 divisors (see below), whose sum is σ = 153854316. Its totient is φ = 29305568.

The previous prime is 73263937. The next prime is 73263941. The reversal of 73263940 is 4936237.

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 28132416 = 6718^2 + 5304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 73263896 and 73263905.

It is not an unprimeable number, because it can be changed into a prime (73263941) 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, 1831579 + ... + 1831618.

It is an arithmetic number, because the mean of its divisors is an integer number (12821193).

Almost surely, 2^73263940 is an apocalyptic number.

It is an amenable number.

73263940 is an abundant number, since it is smaller than the sum of its proper divisors (80590376).

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

73263940 is a wasteful number, since it uses less digits than its factorization.

73263940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3663206 (or 3663204 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 34.

The square root of 73263940 is about 8559.4357290653. The cubic root of 73263940 is about 418.4370100471.

The spelling of 73263940 in words is "seventy-three million, two hundred sixty-three thousand, nine hundred forty".