42990852 has 48 divisors (see below), whose sum is σ = 102816000. Its totient is φ = 13977600.

The previous prime is 42990851. The next prime is 42990859. The reversal of 42990852 is 25809924.

It is a self number, because there is not a number n which added to its sum of digits gives 42990852.

It is not an unprimeable number, because it can be changed into a prime (42990851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95524 + ... + 95972.

It is an arithmetic number, because the mean of its divisors is an integer number (2142000).

Almost surely, 2^42990852 is an apocalyptic number.

It is an amenable number.

42990852 is an abundant number, since it is smaller than the sum of its proper divisors (59825148).

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

42990852 is a wasteful number, since it uses less digits than its factorization.

42990852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636 (or 634 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 42990852 is about 6556.7409587386. The cubic root of 42990852 is about 350.3149600243.

The spelling of 42990852 in words is "forty-two million, nine hundred ninety thousand, eight hundred fifty-two".