42455622 has 32 divisors (see below), whose sum is σ = 94022784. Its totient is φ = 12672000.

The previous prime is 42455603. The next prime is 42455641. The reversal of 42455622 is 22655424.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42455603) and next prime (42455641).

It is a self number, because there is not a number n which added to its sum of digits gives 42455622.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 379 + ... + 9222.

It is an arithmetic number, because the mean of its divisors is an integer number (2938212).

Almost surely, 2^42455622 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42455622, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47011392).

42455622 is an abundant number, since it is smaller than the sum of its proper divisors (51567162).

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

42455622 is a wasteful number, since it uses less digits than its factorization.

42455622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9684.

The product of its digits is 19200, while the sum is 30.

The square root of 42455622 is about 6515.7978790015. The cubic root of 42455622 is about 348.8550942890.

The spelling of 42455622 in words is "forty-two million, four hundred fifty-five thousand, six hundred twenty-two".