72949254 has 32 divisors (see below), whose sum is σ = 167456256. Its totient is φ = 20753280.

The previous prime is 72949243. The next prime is 72949259. The reversal of 72949254 is 45294927.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72949259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6519 + ... + 13725.

It is an arithmetic number, because the mean of its divisors is an integer number (5233008).

Almost surely, 2^72949254 is an apocalyptic number.

72949254 is an abundant number, since it is smaller than the sum of its proper divisors (94507002).

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

72949254 is a wasteful number, since it uses less digits than its factorization.

72949254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7460.

The product of its digits is 181440, while the sum is 42.

The square root of 72949254 is about 8541.0335440156. The cubic root of 72949254 is about 417.8370548393.

The spelling of 72949254 in words is "seventy-two million, nine hundred forty-nine thousand, two hundred fifty-four".