73400668 has 12 divisors (see below), whose sum is σ = 140128632. Its totient is φ = 33363920.

The previous prime is 73400641. The next prime is 73400669. The reversal of 73400668 is 86600437.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73400669) 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, 834055 + ... + 834142.

It is an arithmetic number, because the mean of its divisors is an integer number (11677386).

Almost surely, 2^73400668 is an apocalyptic number.

It is an amenable number.

73400668 is a deficient number, since it is larger than the sum of its proper divisors (66727964).

73400668 is a wasteful number, since it uses less digits than its factorization.

73400668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668212 (or 1668210 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 73400668 is about 8567.4189812335. The cubic root of 73400668 is about 418.6971494004.

The spelling of 73400668 in words is "seventy-three million, four hundred thousand, six hundred sixty-eight".