72749034 has 48 divisors (see below), whose sum is σ = 162457152. Its totient is φ = 23514624.

The previous prime is 72749021. The next prime is 72749051. The reversal of 72749034 is 43094727.

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

It is a self number, because there is not a number n which added to its sum of digits gives 72749034.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 149139 + ... + 149625.

It is an arithmetic number, because the mean of its divisors is an integer number (3384524).

Almost surely, 2^72749034 is an apocalyptic number.

72749034 is an abundant number, since it is smaller than the sum of its proper divisors (89708118).

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

72749034 is a wasteful number, since it uses less digits than its factorization.

72749034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731 (or 728 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 72749034 is about 8529.3044265051. The cubic root of 72749034 is about 417.4544327382.

The spelling of 72749034 in words is "seventy-two million, seven hundred forty-nine thousand, thirty-four".