42298578 has 64 divisors (see below), whose sum is σ = 108069120. Its totient is φ = 12013056.

The previous prime is 42298577. The next prime is 42298583. The reversal of 42298578 is 87589224.

It is not an unprimeable number, because it can be changed into a prime (42298577) 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, 119650 + ... + 120002.

It is an arithmetic number, because the mean of its divisors is an integer number (1688580).

Almost surely, 2^42298578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42298578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54034560).

42298578 is an abundant number, since it is smaller than the sum of its proper divisors (65770542).

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

42298578 is a wasteful number, since it uses less digits than its factorization.

42298578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688 (or 682 counting only the distinct ones).

The product of its digits is 322560, while the sum is 45.

The square root of 42298578 is about 6503.7356957367. The cubic root of 42298578 is about 348.4244227083.

The spelling of 42298578 in words is "forty-two million, two hundred ninety-eight thousand, five hundred seventy-eight".