72772434 has 24 divisors (see below), whose sum is σ = 180198720. Its totient is φ = 20792088.

The previous prime is 72772411. The next prime is 72772439. The reversal of 72772434 is 43427727.

It is not an unprimeable number, because it can be changed into a prime (72772439) 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 11 ways as a sum of consecutive naturals, for example, 288654 + ... + 288905.

It is an arithmetic number, because the mean of its divisors is an integer number (7508280).

Almost surely, 2^72772434 is an apocalyptic number.

72772434 is an abundant number, since it is smaller than the sum of its proper divisors (107426286).

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

72772434 is a wasteful number, since it uses less digits than its factorization.

72772434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 577574 (or 577571 counting only the distinct ones).

The product of its digits is 65856, while the sum is 36.

The square root of 72772434 is about 8530.6760576170. The cubic root of 72772434 is about 417.4991865355.

The spelling of 72772434 in words is "seventy-two million, seven hundred seventy-two thousand, four hundred thirty-four".