42288522 has 16 divisors (see below), whose sum is σ = 86544480. Its totient is φ = 13768272.

The previous prime is 42288517. The next prime is 42288529. The reversal of 42288522 is 22588224.

It is not an unprimeable number, because it can be changed into a prime (42288529) 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, 81697 + ... + 82212.

It is an arithmetic number, because the mean of its divisors is an integer number (5409030).

Almost surely, 2^42288522 is an apocalyptic number.

42288522 is an abundant number, since it is smaller than the sum of its proper divisors (44255958).

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

42288522 is a wasteful number, since it uses less digits than its factorization.

42288522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163957.

The product of its digits is 20480, while the sum is 33.

The square root of 42288522 is about 6502.9625556357. The cubic root of 42288522 is about 348.3968092214.

The spelling of 42288522 in words is "forty-two million, two hundred eighty-eight thousand, five hundred twenty-two".