428425772 has 24 divisors (see below), whose sum is σ = 796594176. Its totient is φ = 200914688.

The previous prime is 428425763. The next prime is 428425793. The reversal of 428425772 is 277524824.

It is a super-2 number, since 2×428425772² = 367097284227591968, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9173 + ... + 30675.

It is an arithmetic number, because the mean of its divisors is an integer number (33191424).

Almost surely, 2^428425772 is an apocalyptic number.

It is an amenable number.

428425772 is a deficient number, since it is larger than the sum of its proper divisors (368168404).

428425772 is a wasteful number, since it uses less digits than its factorization.

428425772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21817 (or 21815 counting only the distinct ones).

The product of its digits is 250880, while the sum is 41.

The square root of 428425772 is about 20698.4485408931. The cubic root of 428425772 is about 753.8620179182.

The spelling of 428425772 in words is "four hundred twenty-eight million, four hundred twenty-five thousand, seven hundred seventy-two".