73378732 has 24 divisors (see below), whose sum is σ = 155391264. Its totient is φ = 29597952.

The previous prime is 73378709. The next prime is 73378751. The reversal of 73378732 is 23787337.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76603 + ... + 77554.

It is an arithmetic number, because the mean of its divisors is an integer number (6474636).

Almost surely, 2^73378732 is an apocalyptic number.

It is an amenable number.

73378732 is an abundant number, since it is smaller than the sum of its proper divisors (82012532).

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

73378732 is a wasteful number, since it uses less digits than its factorization.

73378732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 154185 (or 154183 counting only the distinct ones).

The product of its digits is 148176, while the sum is 40.

The square root of 73378732 is about 8566.1386867129. The cubic root of 73378732 is about 418.6554356303.

The spelling of 73378732 in words is "seventy-three million, three hundred seventy-eight thousand, seven hundred thirty-two".