42231558 has 16 divisors (see below), whose sum is σ = 86523696. Its totient is φ = 13733760.

The previous prime is 42231499. The next prime is 42231559. The reversal of 42231558 is 85513224.

It is a super-2 number, since 2×42231558² = 3567008982214728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42231559) 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, 85591 + ... + 86082.

It is an arithmetic number, because the mean of its divisors is an integer number (5407731).

Almost surely, 2^42231558 is an apocalyptic number.

42231558 is an abundant number, since it is smaller than the sum of its proper divisors (44292138).

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

42231558 is a wasteful number, since it uses less digits than its factorization.

42231558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171719.

The product of its digits is 9600, while the sum is 30.

The square root of 42231558 is about 6498.5812297762. The cubic root of 42231558 is about 348.2403050237.

The spelling of 42231558 in words is "forty-two million, two hundred thirty-one thousand, five hundred fifty-eight".