428775526 has 8 divisors (see below), whose sum is σ = 646756920. Its totient is φ = 213189888.

The previous prime is 428775521. The next prime is 428775553. The reversal of 428775526 is 625577824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428775521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 598491 + ... + 599206.

It is an arithmetic number, because the mean of its divisors is an integer number (80844615).

Almost surely, 2^428775526 is an apocalyptic number.

428775526 is a deficient number, since it is larger than the sum of its proper divisors (217981394).

428775526 is a wasteful number, since it uses less digits than its factorization.

428775526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197878.

The product of its digits is 940800, while the sum is 46.

The square root of 428775526 is about 20706.8956147463. The cubic root of 428775526 is about 754.0671055951.

The spelling of 428775526 in words is "four hundred twenty-eight million, seven hundred seventy-five thousand, five hundred twenty-six".