428227832250 has 96 divisors (see below), whose sum is σ = 1166768006976. Its totient is φ = 113322300000.

The previous prime is 428227832243. The next prime is 428227832251. The reversal of 428227832250 is 52238722824.

428227832250 is a `hidden beast` number, since 4 + 2 + 8 + 2 + 278 + 322 + 50 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 428227832196 and 428227832205.

It is not an unprimeable number, because it can be changed into a prime (428227832251) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 431676 + ... + 1021175.

It is an arithmetic number, because the mean of its divisors is an integer number (12153833406).

Almost surely, 2^428227832250 is an apocalyptic number.

428227832250 is an abundant number, since it is smaller than the sum of its proper divisors (738540174726).

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

428227832250 is a wasteful number, since it uses less digits than its factorization.

428227832250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1453005 (or 1452992 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The spelling of 428227832250 in words is "four hundred twenty-eight billion, two hundred twenty-seven million, eight hundred thirty-two thousand, two hundred fifty".