42237558 has 64 divisors (see below), whose sum is σ = 103184640. Its totient is φ = 12700800.

The previous prime is 42237557. The next prime is 42237563. The reversal of 42237558 is 85573224.

It is a super-2 number, since 2×42237558² = 3568022611606728, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42237557) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125166 + ... + 125502.

It is an arithmetic number, because the mean of its divisors is an integer number (1612260).

Almost surely, 2^42237558 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42237558, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51592320).

42237558 is an abundant number, since it is smaller than the sum of its proper divisors (60947082).

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

42237558 is a wasteful number, since it uses less digits than its factorization.

42237558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 564 counting only the distinct ones).

The product of its digits is 67200, while the sum is 36.

The square root of 42237558 is about 6499.0428526053. The cubic root of 42237558 is about 348.2567961896.

It can be divided in two parts, 4223 and 7558, that added together give a triangular number (11781 = T₁₅₃).

The spelling of 42237558 in words is "forty-two million, two hundred thirty-seven thousand, five hundred fifty-eight".