72480357 has 6 divisors (see below), whose sum is σ = 104693862. Its totient is φ = 48320232.

The previous prime is 72480341. The next prime is 72480391. The reversal of 72480357 is 75308427.

It can be written as a sum of positive squares in only one way, i.e., 50211396 + 22268961 = 7086^2 + 4719^2 .

It is not a de Polignac number, because 72480357 - 2⁴ = 72480341 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72480857) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4026678 + ... + 4026695.

It is an arithmetic number, because the mean of its divisors is an integer number (17448977).

Almost surely, 2^72480357 is an apocalyptic number.

It is an amenable number.

72480357 is a deficient number, since it is larger than the sum of its proper divisors (32213505).

72480357 is a wasteful number, since it uses less digits than its factorization.

72480357 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8053379 (or 8053376 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 72480357 is about 8513.5396281453. The cubic root of 72480357 is about 416.9398840241.

The spelling of 72480357 in words is "seventy-two million, four hundred eighty thousand, three hundred fifty-seven".