42228582 has 32 divisors (see below), whose sum is σ = 95316480. Its totient is φ = 12354720.

The previous prime is 42228577. The next prime is 42228587. The reversal of 42228582 is 28582224.

It is an interprime number because it is at equal distance from previous prime (42228577) and next prime (42228587).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42228587) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9118 + ... + 12945.

It is an arithmetic number, because the mean of its divisors is an integer number (2978640).

Almost surely, 2^42228582 is an apocalyptic number.

42228582 is an abundant number, since it is smaller than the sum of its proper divisors (53087898).

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

42228582 is a wasteful number, since it uses less digits than its factorization.

42228582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22108.

The product of its digits is 20480, while the sum is 33.

The square root of 42228582 is about 6498.3522526868. The cubic root of 42228582 is about 348.2321248259.

The spelling of 42228582 in words is "forty-two million, two hundred twenty-eight thousand, five hundred eighty-two".