42253128 has 24 divisors (see below), whose sum is σ = 114435750. Its totient is φ = 14084352.

The previous prime is 42253097. The next prime is 42253153. The reversal of 42253128 is 82135224.

It can be written as a sum of positive squares in only one way, i.e., 39162564 + 3090564 = 6258^2 + 1758^2 .

It is a tau number, because it is divible by the number of its divisors (24).

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 5 ways as a sum of consecutive naturals, for example, 293353 + ... + 293496.

Almost surely, 2^42253128 is an apocalyptic number.

It is an amenable number.

42253128 is an abundant number, since it is smaller than the sum of its proper divisors (72182622).

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

42253128 is a wasteful number, since it uses less digits than its factorization.

42253128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586861 (or 586854 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 42253128 is about 6500.2406109313. The cubic root of 42253128 is about 348.2995834815.

The spelling of 42253128 in words is "forty-two million, two hundred fifty-three thousand, one hundred twenty-eight".