428898132 has 48 divisors (see below), whose sum is σ = 1197497280. Its totient is φ = 131968224.

The previous prime is 428898131. The next prime is 428898157. The reversal of 428898132 is 231898824.

428898132 is a `hidden beast` number, since 428 + 8 + 98 + 132 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428898131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151338 + ... + 154145.

It is an arithmetic number, because the mean of its divisors is an integer number (24947860).

Almost surely, 2^428898132 is an apocalyptic number.

It is an amenable number.

428898132 is an abundant number, since it is smaller than the sum of its proper divisors (768599148).

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

428898132 is a wasteful number, since it uses less digits than its factorization.

428898132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305509 (or 305501 counting only the distinct ones).

The product of its digits is 221184, while the sum is 45.

The square root of 428898132 is about 20709.8559145157. The cubic root of 428898132 is about 754.1389725241.

The spelling of 428898132 in words is "four hundred twenty-eight million, eight hundred ninety-eight thousand, one hundred thirty-two".