428070252 has 24 divisors (see below), whose sum is σ = 1015761600. Its totient is φ = 140271376.

The previous prime is 428070239. The next prime is 428070257. The reversal of 428070252 is 252070824.

It is not an unprimeable number, because it can be changed into a prime (428070257) 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, 301602 + ... + 303017.

It is an arithmetic number, because the mean of its divisors is an integer number (42323400).

Almost surely, 2^428070252 is an apocalyptic number.

It is an amenable number.

428070252 is an abundant number, since it is smaller than the sum of its proper divisors (587691348).

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

428070252 is a wasteful number, since it uses less digits than its factorization.

428070252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 604685 (or 604683 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 30.

The square root of 428070252 is about 20689.8586752061. The cubic root of 428070252 is about 753.6534347662.

The spelling of 428070252 in words is "four hundred twenty-eight million, seventy thousand, two hundred fifty-two".