57198842 has 8 divisors (see below), whose sum is σ = 85860000. Its totient is φ = 28578844.

The previous prime is 57198839. The next prime is 57198851. The reversal of 57198842 is 24889175.

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

It is a super-2 number, since 2×57198842² = 6543415052281928, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 57198793 and 57198802.

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, 6542 + ... + 12537.

It is an arithmetic number, because the mean of its divisors is an integer number (10732500).

Almost surely, 2^57198842 is an apocalyptic number.

57198842 is a deficient number, since it is larger than the sum of its proper divisors (28661158).

57198842 is a wasteful number, since it uses less digits than its factorization.

57198842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20580.

The product of its digits is 161280, while the sum is 44.

The square root of 57198842 is about 7562.9916038562. The cubic root of 57198842 is about 385.2971046732.

The spelling of 57198842 in words is "fifty-seven million, one hundred ninety-eight thousand, eight hundred forty-two".