42122256 has 40 divisors (see below), whose sum is σ = 118709664. Its totient is φ = 12764160.

The previous prime is 42122237. The next prime is 42122257. The reversal of 42122256 is 65222124.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42122257) 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, 39361 + ... + 40416.

Almost surely, 2^42122256 is an apocalyptic number.

It is an amenable number.

42122256 is an abundant number, since it is smaller than the sum of its proper divisors (76587408).

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

42122256 is a wasteful number, since it uses less digits than its factorization.

42122256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79799 (or 79793 counting only the distinct ones).

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

The square root of 42122256 is about 6490.1660995694. The cubic root of 42122256 is about 347.9396116644.

The spelling of 42122256 in words is "forty-two million, one hundred twenty-two thousand, two hundred fifty-six".