42607857 has 12 divisors (see below), whose sum is σ = 58706160. Its totient is φ = 27487080.

The previous prime is 42607849. The next prime is 42607909. The reversal of 42607857 is 75870624.

It is not a de Polignac number, because 42607857 - 2³ = 42607849 is a prime.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42607847) 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 11 ways as a sum of consecutive naturals, for example, 4507 + ... + 10272.

It is an arithmetic number, because the mean of its divisors is an integer number (4892180).

Almost surely, 2^42607857 is an apocalyptic number.

It is an amenable number.

42607857 is a deficient number, since it is larger than the sum of its proper divisors (16098303).

42607857 is a wasteful number, since it uses less digits than its factorization.

42607857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14844 (or 14813 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 42607857 is about 6527.4694177759. The cubic root of 42607857 is about 349.2715652749.

The spelling of 42607857 in words is "forty-two million, six hundred seven thousand, eight hundred fifty-seven".