42031608 has 32 divisors (see below), whose sum is σ = 105494400. Its totient is φ = 13955168.

The previous prime is 42031607. The next prime is 42031621. The reversal of 42031608 is 80613024.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42031607) 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, 2983 + ... + 9641.

It is an arithmetic number, because the mean of its divisors is an integer number (3296700).

Almost surely, 2^42031608 is an apocalyptic number.

It is an amenable number.

42031608 is an abundant number, since it is smaller than the sum of its proper divisors (63462792).

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

42031608 is a wasteful number, since it uses less digits than its factorization.

42031608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6931 (or 6927 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 42031608 is about 6483.1788499161. The cubic root of 42031608 is about 347.6898412347.

The spelling of 42031608 in words is "forty-two million, thirty-one thousand, six hundred eight".