426021136 has 20 divisors (see below), whose sum is σ = 853879500. Its totient is φ = 205665152.

The previous prime is 426021109. The next prime is 426021143. The reversal of 426021136 is 631120624.

It can be written as a sum of positive squares in 2 ways, for example, as 306250000 + 119771136 = 17500^2 + 10944^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 426021136.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458611 + ... + 459538.

It is an arithmetic number, because the mean of its divisors is an integer number (42693975).

Almost surely, 2^426021136 is an apocalyptic number.

It is an amenable number.

426021136 is an abundant number, since it is smaller than the sum of its proper divisors (427858364).

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

426021136 is a wasteful number, since it uses less digits than its factorization.

426021136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 918186 (or 918180 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 426021136 is about 20640.2794554725. The cubic root of 426021136 is about 752.4489642102.

The spelling of 426021136 in words is "four hundred twenty-six million, twenty-one thousand, one hundred thirty-six".