42385522 has 16 divisors (see below), whose sum is σ = 67941720. Its totient is φ = 19761408.

The previous prime is 42385517. The next prime is 42385537. The reversal of 42385522 is 22558324.

It can be written as a sum of positive squares in 4 ways, for example, as 39828721 + 2556801 = 6311^2 + 1599^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2013 + ... + 9424.

Almost surely, 2^42385522 is an apocalyptic number.

42385522 is a deficient number, since it is larger than the sum of its proper divisors (25556198).

42385522 is a wasteful number, since it uses less digits than its factorization.

42385522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11565.

The product of its digits is 19200, while the sum is 31.

The square root of 42385522 is about 6510.4164229333. The cubic root of 42385522 is about 348.6629861324.

The spelling of 42385522 in words is "forty-two million, three hundred eighty-five thousand, five hundred twenty-two".