72457084 has 36 divisors (see below), whose sum is σ = 153924624. Its totient is φ = 29701056.

The previous prime is 72457067. The next prime is 72457117. The reversal of 72457084 is 48075427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3529 + ... + 12544.

It is an arithmetic number, because the mean of its divisors is an integer number (4275684).

Almost surely, 2^72457084 is an apocalyptic number.

It is an amenable number.

72457084 is an abundant number, since it is smaller than the sum of its proper divisors (81467540).

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

72457084 is a wasteful number, since it uses less digits than its factorization.

72457084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16114 (or 16105 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 72457084 is about 8512.1726956166. The cubic root of 72457084 is about 416.8952536300.

The spelling of 72457084 in words is "seventy-two million, four hundred fifty-seven thousand, eighty-four".