42558022 has 16 divisors (see below), whose sum is σ = 71119440. Its totient is φ = 18964512.

The previous prime is 42558017. The next prime is 42558023. The reversal of 42558022 is 22085524.

It is a super-2 number, since 2×42558022² = 3622370473104968, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42558023) 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, 27468 + ... + 28975.

It is an arithmetic number, because the mean of its divisors is an integer number (4444965).

Almost surely, 2^42558022 is an apocalyptic number.

42558022 is a deficient number, since it is larger than the sum of its proper divisors (28561418).

42558022 is a wasteful number, since it uses less digits than its factorization.

42558022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56487.

The product of its (nonzero) digits is 6400, while the sum is 28.

The square root of 42558022 is about 6523.6509716569. The cubic root of 42558022 is about 349.1353404859.

The spelling of 42558022 in words is "forty-two million, five hundred fifty-eight thousand, twenty-two".