42221292 has 24 divisors (see below), whose sum is σ = 101180016. Its totient is φ = 13693248.

The previous prime is 42221281. The next prime is 42221299. The reversal of 42221292 is 29212224.

42221292 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (42221299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47103 + ... + 47990.

It is an arithmetic number, because the mean of its divisors is an integer number (4215834).

Almost surely, 2^42221292 is an apocalyptic number.

It is an amenable number.

42221292 is an abundant number, since it is smaller than the sum of its proper divisors (58958724).

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

42221292 is a wasteful number, since it uses less digits than its factorization.

42221292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95137 (or 95135 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 42221292 is about 6497.7913170554. The cubic root of 42221292 is about 348.2120850159.

The spelling of 42221292 in words is "forty-two million, two hundred twenty-one thousand, two hundred ninety-two".