42522790 has 8 divisors (see below), whose sum is σ = 76541040. Its totient is φ = 17009112.

The previous prime is 42522761. The next prime is 42522803. The reversal of 42522790 is 9722524.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 2126130 + ... + 2126149.

It is an arithmetic number, because the mean of its divisors is an integer number (9567630).

Almost surely, 2^42522790 is an apocalyptic number.

42522790 is a deficient number, since it is larger than the sum of its proper divisors (34018250).

42522790 is a wasteful number, since it uses less digits than its factorization.

42522790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252286.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 42522790 is about 6520.9500841518. The cubic root of 42522790 is about 349.0389690560.

The spelling of 42522790 in words is "forty-two million, five hundred twenty-two thousand, seven hundred ninety".