57842690 has 8 divisors (see below), whose sum is σ = 104116860. Its totient is φ = 23137072.

The previous prime is 57842689. The next prime is 57842693. The reversal of 57842690 is 9624875.

It can be written as a sum of positive squares in 2 ways, for example, as 56957209 + 885481 = 7547^2 + 941^2 .

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

It is a super-2 number, since 2×57842690² = 6691553572872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (57842693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2892125 + ... + 2892144.

Almost surely, 2^57842690 is an apocalyptic number.

57842690 is a deficient number, since it is larger than the sum of its proper divisors (46274170).

57842690 is a wasteful number, since it uses less digits than its factorization.

57842690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784276.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 57842690 is about 7605.4381859299. The cubic root of 57842690 is about 386.7373888013.

The spelling of 57842690 in words is "fifty-seven million, eight hundred forty-two thousand, six hundred ninety".