42086357 has 4 divisors (see below), whose sum is σ = 42101856. Its totient is φ = 42070860.

The previous prime is 42086351. The next prime is 42086371. The reversal of 42086357 is 75368024.

It is a happy number.

42086357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42086357 is a prime.

It is a super-2 number, since 2×42086357² = 3542522891062898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42086351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2483 + ... + 9504.

It is an arithmetic number, because the mean of its divisors is an integer number (10525464).

Almost surely, 2^42086357 is an apocalyptic number.

It is an amenable number.

42086357 is a deficient number, since it is larger than the sum of its proper divisors (15499).

42086357 is a wasteful number, since it uses less digits than its factorization.

42086357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15498.

The product of its (nonzero) digits is 40320, while the sum is 35.

The square root of 42086357 is about 6487.3998643524. The cubic root of 42086357 is about 347.8407388798.

The spelling of 42086357 in words is "forty-two million, eighty-six thousand, three hundred fifty-seven".