42522240 has 64 divisors (see below), whose sum is σ = 135545760. Its totient is φ = 11338752.

The previous prime is 42522229. The next prime is 42522283. The reversal of 42522240 is 4222524.

It is a tau number, because it is divible by the number of its divisors (64).

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, 9154 + ... + 12993.

Almost surely, 2^42522240 is an apocalyptic number.

42522240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42522240 is an abundant number, since it is smaller than the sum of its proper divisors (93023520).

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

42522240 is a wasteful number, since it uses less digits than its factorization.

42522240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22169 (or 22157 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 21.

The square root of 42522240 is about 6520.9079122466. The cubic root of 42522240 is about 349.0374641982.

Adding to 42522240 its reverse (4222524), we get a palindrome (46744764).

The spelling of 42522240 in words is "forty-two million, five hundred twenty-two thousand, two hundred forty".