42492258 has 48 divisors (see below), whose sum is σ = 95726592. Its totient is φ = 13608000.

The previous prime is 42492257. The next prime is 42492259. The reversal of 42492258 is 85229424.

42492258 is a `hidden beast` number, since 424 + 9 + 225 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (42492257) and next prime (42492259).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42492251) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 151078 + ... + 151358.

It is an arithmetic number, because the mean of its divisors is an integer number (1994304).

Almost surely, 2^42492258 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42492258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47863296).

42492258 is an abundant number, since it is smaller than the sum of its proper divisors (53234334).

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

42492258 is a wasteful number, since it uses less digits than its factorization.

42492258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 591 (or 588 counting only the distinct ones).

The product of its digits is 46080, while the sum is 36.

The square root of 42492258 is about 6518.6085938642. The cubic root of 42492258 is about 348.9554106519.

The spelling of 42492258 in words is "forty-two million, four hundred ninety-two thousand, two hundred fifty-eight".