57420718 has 8 divisors (see below), whose sum is σ = 86257800. Its totient is φ = 28668120.

The previous prime is 57420689. The next prime is 57420731. The reversal of 57420718 is 81702475.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19393 + ... + 22156.

It is an arithmetic number, because the mean of its divisors is an integer number (10782225).

Almost surely, 2^57420718 is an apocalyptic number.

57420718 is a deficient number, since it is larger than the sum of its proper divisors (28837082).

57420718 is a wasteful number, since it uses less digits than its factorization.

57420718 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42242.

The product of its (nonzero) digits is 15680, while the sum is 34.

The square root of 57420718 is about 7577.6459405280. The cubic root of 57420718 is about 385.7946548446.

The spelling of 57420718 in words is "fifty-seven million, four hundred twenty thousand, seven hundred eighteen".