72250776 has 48 divisors (see below), whose sum is σ = 210734160. Its totient is φ = 22230720.

The previous prime is 72250771. The next prime is 72250777. The reversal of 72250776 is 67705227.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72250776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72250771) 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, 37660 + ... + 39531.

It is an arithmetic number, because the mean of its divisors is an integer number (4390295).

Almost surely, 2^72250776 is an apocalyptic number.

It is an amenable number.

72250776 is an abundant number, since it is smaller than the sum of its proper divisors (138483384).

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

72250776 is a wasteful number, since it uses less digits than its factorization.

72250776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77216 (or 77209 counting only the distinct ones).

The product of its (nonzero) digits is 41160, while the sum is 36.

The square root of 72250776 is about 8500.0456469363. The cubic root of 72250776 is about 416.4992003989.

The spelling of 72250776 in words is "seventy-two million, two hundred fifty thousand, seven hundred seventy-six".