73668388 has 12 divisors (see below), whose sum is σ = 130686220. Its totient is φ = 36329472.

The previous prime is 73668383. The next prime is 73668389. The reversal of 73668388 is 88386637.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24920064 + 48748324 = 4992^2 + 6982^2 .

It is not an unprimeable number, because it can be changed into a prime (73668383) 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, 125853 + ... + 126436.

Almost surely, 2^73668388 is an apocalyptic number.

It is an amenable number.

73668388 is a deficient number, since it is larger than the sum of its proper divisors (57017832).

73668388 is a wasteful number, since it uses less digits than its factorization.

73668388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252366 (or 252364 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 49.

The square root of 73668388 is about 8583.0290690408. The cubic root of 73668388 is about 419.2055807121.

The spelling of 73668388 in words is "seventy-three million, six hundred sixty-eight thousand, three hundred eighty-eight".