42212256 has 48 divisors (see below), whose sum is σ = 111513024. Its totient is φ = 13981184.

The previous prime is 42212237. The next prime is 42212267. The reversal of 42212256 is 65221224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 14716 + ... + 17348.

It is an arithmetic number, because the mean of its divisors is an integer number (2323188).

Almost surely, 2^42212256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42212256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55756512).

42212256 is an abundant number, since it is smaller than the sum of its proper divisors (69300768).

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

42212256 is a wasteful number, since it uses less digits than its factorization.

42212256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813 (or 2805 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 42212256 is about 6497.0959666608. The cubic root of 42212256 is about 348.1872423457.

The spelling of 42212256 in words is "forty-two million, two hundred twelve thousand, two hundred fifty-six".