72949494 has 16 divisors (see below), whose sum is σ = 146641968. Its totient is φ = 24192672.

The previous prime is 72949489. The next prime is 72949501. The reversal of 72949494 is 49494927.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29677 + ... + 32040.

It is an arithmetic number, because the mean of its divisors is an integer number (9165123).

Almost surely, 2^72949494 is an apocalyptic number.

72949494 is an abundant number, since it is smaller than the sum of its proper divisors (73692474).

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

72949494 is a wasteful number, since it uses less digits than its factorization.

72949494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61919.

The product of its digits is 653184, while the sum is 48.

The square root of 72949494 is about 8541.0475938259. The cubic root of 72949494 is about 417.8375130609.

The spelling of 72949494 in words is "seventy-two million, nine hundred forty-nine thousand, four hundred ninety-four".