73638372 has 24 divisors (see below), whose sum is σ = 174736800. Its totient is φ = 24129856.

The previous prime is 73638353. The next prime is 73638377. The reversal of 73638372 is 27383637.

It is a self number, because there is not a number n which added to its sum of digits gives 73638372.

It is not an unprimeable number, because it can be changed into a prime (73638377) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51297 + ... + 52712.

It is an arithmetic number, because the mean of its divisors is an integer number (7280700).

Almost surely, 2^73638372 is an apocalyptic number.

It is an amenable number.

73638372 is an abundant number, since it is smaller than the sum of its proper divisors (101098428).

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

73638372 is a wasteful number, since it uses less digits than its factorization.

73638372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104075 (or 104073 counting only the distinct ones).

The product of its digits is 127008, while the sum is 39.

The square root of 73638372 is about 8581.2803240542. The cubic root of 73638372 is about 419.1486382234.

The spelling of 73638372 in words is "seventy-three million, six hundred thirty-eight thousand, three hundred seventy-two".