72722754 has 24 divisors (see below), whose sum is σ = 169686972. Its totient is φ = 22376160.

The previous prime is 72722737. The next prime is 72722777. The reversal of 72722754 is 45722727.

It can be written as a sum of positive squares in 2 ways, for example, as 72641529 + 81225 = 8523^2 + 285^2 .

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 155157 + ... + 155624.

Almost surely, 2^72722754 is an apocalyptic number.

72722754 is an abundant number, since it is smaller than the sum of its proper divisors (96964218).

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

72722754 is a wasteful number, since it uses less digits than its factorization.

72722754 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310802 (or 310799 counting only the distinct ones).

The product of its digits is 54880, while the sum is 36.

The square root of 72722754 is about 8527.7637162389. The cubic root of 72722754 is about 417.4041593386.

The spelling of 72722754 in words is "seventy-two million, seven hundred twenty-two thousand, seven hundred fifty-four".