426633228 has 36 divisors (see below), whose sum is σ = 1232496720. Its totient is φ = 121895136.

The previous prime is 426633227. The next prime is 426633269. The reversal of 426633228 is 822336624.

426633228 is a `hidden beast` number, since 426 + 6 + 3 + 3 + 228 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×426633228² = 364031822467399968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 426633192 and 426633201.

It is not an unprimeable number, because it can be changed into a prime (426633227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 846243 + ... + 846746.

It is an arithmetic number, because the mean of its divisors is an integer number (34236020).

Almost surely, 2^426633228 is an apocalyptic number.

It is an amenable number.

426633228 is an abundant number, since it is smaller than the sum of its proper divisors (805863492).

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

426633228 is a wasteful number, since it uses less digits than its factorization.

426633228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1693006 (or 1693001 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 426633228 is about 20655.1017426688. The cubic root of 426633228 is about 752.8091557222.

The spelling of 426633228 in words is "four hundred twenty-six million, six hundred thirty-three thousand, two hundred twenty-eight".