42286431 has 8 divisors (see below), whose sum is σ = 61507584. Its totient is φ = 25628120.

The previous prime is 42286427. The next prime is 42286459. The reversal of 42286431 is 13468224.

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

It is a cyclic number.

It is not a de Polignac number, because 42286431 - 2² = 42286427 is a prime.

It is a super-2 number, since 2×42286431² = 3576284493435522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42286331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 640671 + ... + 640736.

It is an arithmetic number, because the mean of its divisors is an integer number (7688448).

Almost surely, 2^42286431 is an apocalyptic number.

42286431 is a deficient number, since it is larger than the sum of its proper divisors (19221153).

42286431 is a wasteful number, since it uses less digits than its factorization.

42286431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1281421.

The product of its digits is 9216, while the sum is 30.

The square root of 42286431 is about 6502.8017807711. The cubic root of 42286431 is about 348.3910668457.

The spelling of 42286431 in words is "forty-two million, two hundred eighty-six thousand, four hundred thirty-one".