42279252 has 24 divisors (see below), whose sum is σ = 99023232. Its totient is φ = 14040000.

The previous prime is 42279203. The next prime is 42279253. The reversal of 42279252 is 25297224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42279253) 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, 3249 + ... + 9752.

It is an arithmetic number, because the mean of its divisors is an integer number (4125968).

Almost surely, 2^42279252 is an apocalyptic number.

It is an amenable number.

42279252 is an abundant number, since it is smaller than the sum of its proper divisors (56743980).

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

42279252 is a wasteful number, since it uses less digits than its factorization.

42279252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13279 (or 13277 counting only the distinct ones).

The product of its digits is 20160, while the sum is 33.

The square root of 42279252 is about 6502.2497645046. The cubic root of 42279252 is about 348.3713501899.

The spelling of 42279252 in words is "forty-two million, two hundred seventy-nine thousand, two hundred fifty-two".