42255144 has 48 divisors (see below), whose sum is σ = 114765300. Its totient is φ = 14045184.

The previous prime is 42255131. The next prime is 42255181. The reversal of 42255144 is 44155224.

It can be written as a sum of positive squares in 2 ways, for example, as 37970244 + 4284900 = 6162^2 + 2070^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36072 + ... + 37224.

Almost surely, 2^42255144 is an apocalyptic number.

It is an amenable number.

42255144 is an abundant number, since it is smaller than the sum of its proper divisors (72510156).

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

42255144 is a wasteful number, since it uses less digits than its factorization.

42255144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674 (or 1667 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 42255144 is about 6500.3956802644. The cubic root of 42255144 is about 348.3051228015.

The spelling of 42255144 in words is "forty-two million, two hundred fifty-five thousand, one hundred forty-four".