73904538 has 8 divisors (see below), whose sum is σ = 147809088. Its totient is φ = 24634844.

The previous prime is 73904533. The next prime is 73904549. The reversal of 73904538 is 83540937.

It is a sphenic number, since it is the product of 3 distinct primes.

73904538 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 73904496 and 73904505.

It is not an unprimeable number, because it can be changed into a prime (73904531) 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, 6158706 + ... + 6158717.

It is an arithmetic number, because the mean of its divisors is an integer number (18476136).

Almost surely, 2^73904538 is an apocalyptic number.

73904538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

73904538 is a wasteful number, since it uses less digits than its factorization.

73904538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12317428.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 73904538 is about 8596.7748603764. The cubic root of 73904538 is about 419.6530354449.

The spelling of 73904538 in words is "seventy-three million, nine hundred four thousand, five hundred thirty-eight".