426427392 has 88 divisors (see below), whose sum is σ = 1146582016. Its totient is φ = 140894208.

The previous prime is 426427367. The next prime is 426427409. The reversal of 426427392 is 293724624.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 426427392.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389598 + ... + 390690.

Almost surely, 2^426427392 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 426427392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (573291008).

426427392 is an abundant number, since it is smaller than the sum of its proper divisors (720154624).

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

426427392 is a wasteful number, since it uses less digits than its factorization.

426427392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1243 (or 1225 counting only the distinct ones).

The product of its digits is 145152, while the sum is 39.

The square root of 426427392 is about 20650.1184500235. The cubic root of 426427392 is about 752.6880679884.

The spelling of 426427392 in words is "four hundred twenty-six million, four hundred twenty-seven thousand, three hundred ninety-two".