428565708 has 24 divisors (see below), whose sum is σ = 1111096560. Its totient is φ = 142855200.

The previous prime is 428565703. The next prime is 428565713. The reversal of 428565708 is 807565824.

428565708 is a `hidden beast` number, since 4 + 28 + 56 + 570 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (428565703) and next prime (428565713).

It is not an unprimeable number, because it can be changed into a prime (428565703) 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, 1983993 + ... + 1984208.

It is an arithmetic number, because the mean of its divisors is an integer number (46295690).

Almost surely, 2^428565708 is an apocalyptic number.

It is an amenable number.

428565708 is an abundant number, since it is smaller than the sum of its proper divisors (682530852).

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

428565708 is a wasteful number, since it uses less digits than its factorization.

428565708 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3968214 (or 3968206 counting only the distinct ones).

The product of its (nonzero) digits is 537600, while the sum is 45.

The square root of 428565708 is about 20701.8286148833. The cubic root of 428565708 is about 753.9440865507.

The spelling of 428565708 in words is "four hundred twenty-eight million, five hundred sixty-five thousand, seven hundred eight".