426427872 has 96 divisors (see below), whose sum is σ = 1209751200. Its totient is φ = 130744320.

The previous prime is 426427871. The next prime is 426427879. The reversal of 426427872 is 278724624.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (426427871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559972 + ... + 560732.

It is an arithmetic number, because the mean of its divisors is an integer number (12601575).

Almost surely, 2^426427872 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 426427872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604875600).

426427872 is an abundant number, since it is smaller than the sum of its proper divisors (783323328).

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

426427872 is a wasteful number, since it uses less digits than its factorization.

426427872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236 (or 1228 counting only the distinct ones).

The product of its digits is 301056, while the sum is 42.

The square root of 426427872 is about 20650.1300722296. The cubic root of 426427872 is about 752.6883504047.

The spelling of 426427872 in words is "four hundred twenty-six million, four hundred twenty-seven thousand, eight hundred seventy-two".