72868194 has 48 divisors (see below), whose sum is σ = 188373600. Its totient is φ = 20818728.

The previous prime is 72868183. The next prime is 72868199. The reversal of 72868194 is 49186827.

It is not an unprimeable number, because it can be changed into a prime (72868199) 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 23 ways as a sum of consecutive naturals, for example, 11124 + ... + 16415.

It is an arithmetic number, because the mean of its divisors is an integer number (3924450).

Almost surely, 2^72868194 is an apocalyptic number.

72868194 is an abundant number, since it is smaller than the sum of its proper divisors (115505406).

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

72868194 is a wasteful number, since it uses less digits than its factorization.

72868194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27564 (or 27551 counting only the distinct ones).

The product of its digits is 193536, while the sum is 45.

The square root of 72868194 is about 8536.2868977091. The cubic root of 72868194 is about 417.6822329470.

The spelling of 72868194 in words is "seventy-two million, eight hundred sixty-eight thousand, one hundred ninety-four".