42831616 has 18 divisors (see below), whose sum is σ = 85496432. Its totient is φ = 21415680.

The previous prime is 42831587. The next prime is 42831631. The reversal of 42831616 is 61613824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 83400 + ... + 83911.

Almost surely, 2^42831616 is an apocalyptic number.

It is an amenable number.

42831616 is a deficient number, since it is larger than the sum of its proper divisors (42664816).

42831616 is an equidigital number, since it uses as much as digits as its factorization.

42831616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167327 (or 167313 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 42831616 is about 6544.5867707595. The cubic root of 42831616 is about 349.8819084592.

The spelling of 42831616 in words is "forty-two million, eight hundred thirty-one thousand, six hundred sixteen".