428227392 has 28 divisors (see below), whose sum is σ = 1133018816. Its totient is φ = 142742400.

The previous prime is 428227367. The next prime is 428227403. The reversal of 428227392 is 293722824.

It is a self number, because there is not a number n which added to its sum of digits gives 428227392.

It is a congruent number.

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, 1114984 + ... + 1115367.

Almost surely, 2^428227392 is an apocalyptic number.

It is an amenable number.

428227392 is an abundant number, since it is smaller than the sum of its proper divisors (704791424).

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

428227392 is a wasteful number, since it uses less digits than its factorization.

428227392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2230366 (or 2230356 counting only the distinct ones).

The product of its digits is 96768, while the sum is 39.

The square root of 428227392 is about 20693.6558394113. The cubic root of 428227392 is about 753.7456428494.

The spelling of 428227392 in words is "four hundred twenty-eight million, two hundred twenty-seven thousand, three hundred ninety-two".