42831536 has 40 divisors (see below), whose sum is σ = 90906384. Its totient is φ = 19388160.

The previous prime is 42831527. The next prime is 42831539. The reversal of 42831536 is 63513824.

It is a super-2 number, since 2×42831536² = 3669080952238592, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42831539) 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, 69566 + ... + 70178.

Almost surely, 2^42831536 is an apocalyptic number.

It is an amenable number.

42831536 is an abundant number, since it is smaller than the sum of its proper divisors (48074848).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42831536 is a wasteful number, since it uses less digits than its factorization.

42831536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1023 counting only the distinct ones).

The product of its digits is 17280, while the sum is 32.

The square root of 42831536 is about 6544.5806588352. The cubic root of 42831536 is about 349.8816906250.

The spelling of 42831536 in words is "forty-two million, eight hundred thirty-one thousand, five hundred thirty-six".