426263442 has 64 divisors (see below), whose sum is σ = 983024640. Its totient is φ = 121867200.

The previous prime is 426263417. The next prime is 426263443. The reversal of 426263442 is 244362624.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (426263443) 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, 389448 + ... + 390540.

It is an arithmetic number, because the mean of its divisors is an integer number (15359760).

Almost surely, 2^426263442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 426263442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (491512320).

426263442 is an abundant number, since it is smaller than the sum of its proper divisors (556761198).

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

426263442 is a wasteful number, since it uses less digits than its factorization.

426263442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1439.

The product of its digits is 55296, while the sum is 33.

The square root of 426263442 is about 20646.1483575024. The cubic root of 426263442 is about 752.5915927701.

The spelling of 426263442 in words is "four hundred twenty-six million, two hundred sixty-three thousand, four hundred forty-two".