42885290 has 32 divisors (see below), whose sum is σ = 90028800. Its totient is φ = 14702352.

The previous prime is 42885263. The next prime is 42885301. The reversal of 42885290 is 9258824.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2822 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (2813400).

Almost surely, 2^42885290 is an apocalyptic number.

42885290 is an abundant number, since it is smaller than the sum of its proper divisors (47143510).

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

42885290 is a wasteful number, since it uses less digits than its factorization.

42885290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12531 (or 12517 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 42885290 is about 6548.6861277664. The cubic root of 42885290 is about 350.0279977603.

The spelling of 42885290 in words is "forty-two million, eight hundred eighty-five thousand, two hundred ninety".