428124256 has 24 divisors (see below), whose sum is σ = 963280080. Its totient is φ = 183481728.

The previous prime is 428124241. The next prime is 428124271. The reversal of 428124256 is 652421824.

It is an interprime number because it is at equal distance from previous prime (428124241) and next prime (428124271).

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, 955411 + ... + 955858.

It is an arithmetic number, because the mean of its divisors is an integer number (40136670).

Almost surely, 2^428124256 is an apocalyptic number.

It is an amenable number.

428124256 is an abundant number, since it is smaller than the sum of its proper divisors (535155824).

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

428124256 is a wasteful number, since it uses less digits than its factorization.

428124256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1911286 (or 1911278 counting only the distinct ones).

The product of its digits is 30720, while the sum is 34.

The square root of 428124256 is about 20691.1637178773. The cubic root of 428124256 is about 753.6851262845.

The spelling of 428124256 in words is "four hundred twenty-eight million, one hundred twenty-four thousand, two hundred fifty-six".