426842988 has 72 divisors (see below), whose sum is σ = 1179003504. Its totient is φ = 119391360.

The previous prime is 426842963. The next prime is 426843017. The reversal of 426842988 is 889248624.

It is a super-3 number, since 3×426842988³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 426842988.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7570 + ... + 30182.

Almost surely, 2^426842988 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426842988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (589501752).

426842988 is an abundant number, since it is smaller than the sum of its proper divisors (752160516).

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

426842988 is a wasteful number, since it uses less digits than its factorization.

426842988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22655 (or 22642 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 51.

The square root of 426842988 is about 20660.1787988391. The cubic root of 426842988 is about 752.9325117775.

The spelling of 426842988 in words is "four hundred twenty-six million, eight hundred forty-two thousand, nine hundred eighty-eight".