57720298 has 8 divisors (see below), whose sum is σ = 86863392. Its totient is φ = 28765836.

The previous prime is 57720293. The next prime is 57720301. The reversal of 57720298 is 89202775.

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

It is a self number, because there is not a number n which added to its sum of digits gives 57720298.

It is not an unprimeable number, because it can be changed into a prime (57720293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46390 + ... + 47617.

It is an arithmetic number, because the mean of its divisors is an integer number (10857924).

Almost surely, 2^57720298 is an apocalyptic number.

57720298 is a deficient number, since it is larger than the sum of its proper divisors (29143094).

57720298 is a wasteful number, since it uses less digits than its factorization.

57720298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94316.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 57720298 is about 7597.3875773189. The cubic root of 57720298 is about 386.4644243935.

The spelling of 57720298 in words is "fifty-seven million, seven hundred twenty thousand, two hundred ninety-eight".