42566224 has 20 divisors (see below), whose sum is σ = 85133440. Its totient is φ = 20596320.

The previous prime is 42566203. The next prime is 42566231. The reversal of 42566224 is 42266524.

42566224 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42414 + ... + 43405.

It is an arithmetic number, because the mean of its divisors is an integer number (4256672).

Almost surely, 2^42566224 is an apocalyptic number.

It is an amenable number.

42566224 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

42566224 is a wasteful number, since it uses less digits than its factorization.

42566224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85858 (or 85852 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 42566224 is about 6524.2795770874. The cubic root of 42566224 is about 349.1577680956.

The spelling of 42566224 in words is "forty-two million, five hundred sixty-six thousand, two hundred twenty-four".