428565324 has 24 divisors (see below), whose sum is σ = 1090893888. Its totient is φ = 129868240.

The previous prime is 428565209. The next prime is 428565329. The reversal of 428565324 is 423565824.

It is not an unprimeable number, because it can be changed into a prime (428565329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1623222 + ... + 1623485.

It is an arithmetic number, because the mean of its divisors is an integer number (45453912).

Almost surely, 2^428565324 is an apocalyptic number.

428565324 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

428565324 is an abundant number, since it is smaller than the sum of its proper divisors (662328564).

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

428565324 is a wasteful number, since it uses less digits than its factorization.

428565324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246725 (or 3246723 counting only the distinct ones).

The product of its digits is 230400, while the sum is 39.

The square root of 428565324 is about 20701.8193403382. The cubic root of 428565324 is about 753.9438613697.

The spelling of 428565324 in words is "four hundred twenty-eight million, five hundred sixty-five thousand, three hundred twenty-four".