42102957 has 16 divisors (see below), whose sum is σ = 60721920. Its totient is φ = 25795392.

The previous prime is 42102943. The next prime is 42102959. The reversal of 42102957 is 75920124.

It is not a de Polignac number, because 42102957 - 2⁸ = 42102701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42102959) 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 15 ways as a sum of consecutive naturals, for example, 7063 + ... + 11579.

It is an arithmetic number, because the mean of its divisors is an integer number (3795120).

Almost surely, 2^42102957 is an apocalyptic number.

It is an amenable number.

42102957 is a deficient number, since it is larger than the sum of its proper divisors (18618963).

42102957 is a wasteful number, since it uses less digits than its factorization.

42102957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4772.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 42102957 is about 6488.6791413970. The cubic root of 42102957 is about 347.8864654738.

The spelling of 42102957 in words is "forty-two million, one hundred two thousand, nine hundred fifty-seven".