72342057 has 8 divisors (see below), whose sum is σ = 96681600. Its totient is φ = 48115280.

The previous prime is 72342047. The next prime is 72342079. The reversal of 72342057 is 75024327.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72342057 - 2⁴ = 72342041 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72342007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26682 + ... + 29267.

It is an arithmetic number, because the mean of its divisors is an integer number (12085200).

Almost surely, 2^72342057 is an apocalyptic number.

It is an amenable number.

72342057 is a deficient number, since it is larger than the sum of its proper divisors (24339543).

72342057 is a wasteful number, since it uses less digits than its factorization.

72342057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56383.

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 72342057 is about 8505.4133938334. The cubic root of 72342057 is about 416.6745270695.

The spelling of 72342057 in words is "seventy-two million, three hundred forty-two thousand, fifty-seven".