72868402 has 16 divisors (see below), whose sum is σ = 112099680. Its totient is φ = 35505792.

The previous prime is 72868399. The next prime is 72868403. The reversal of 72868402 is 20486827.

It is not an unprimeable number, because it can be changed into a prime (72868403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57249 + ... + 58507.

It is an arithmetic number, because the mean of its divisors is an integer number (7006230).

Almost surely, 2^72868402 is an apocalyptic number.

72868402 is a deficient number, since it is larger than the sum of its proper divisors (39231278).

72868402 is a wasteful number, since it uses less digits than its factorization.

72868402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 43008, while the sum is 37.

The square root of 72868402 is about 8536.2990809835. The cubic root of 72868402 is about 417.6826303670.

The spelling of 72868402 in words is "seventy-two million, eight hundred sixty-eight thousand, four hundred two".