72254394 has 12 divisors (see below), whose sum is σ = 156551226. Its totient is φ = 24084792.

The previous prime is 72254393. The next prime is 72254411. The reversal of 72254394 is 49345227.

72254394 is a `hidden beast` number, since 7 + 22 + 543 + 94 = 666.

It can be written as a sum of positive squares in only one way, i.e., 71622369 + 632025 = 8463^2 + 795^2 .

It is not an unprimeable number, because it can be changed into a prime (72254393) 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 5 ways as a sum of consecutive naturals, for example, 2007049 + ... + 2007084.

Almost surely, 2^72254394 is an apocalyptic number.

72254394 is an abundant number, since it is smaller than the sum of its proper divisors (84296832).

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

72254394 is a wasteful number, since it uses less digits than its factorization.

72254394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014141 (or 4014138 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 72254394 is about 8500.2584666585. The cubic root of 72254394 is about 416.5061524301.

The spelling of 72254394 in words is "seventy-two million, two hundred fifty-four thousand, three hundred ninety-four".