420825704 has 16 divisors (see below), whose sum is σ = 849744420. Its totient is φ = 194227200.

The previous prime is 420825689. The next prime is 420825707. The reversal of 420825704 is 407528024.

It can be written as a sum of positive squares in 2 ways, for example, as 391644100 + 29181604 = 19790^2 + 5402^2 .

It is not an unprimeable number, because it can be changed into a prime (420825707) 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, 2023097 + ... + 2023304.

Almost surely, 2^420825704 is an apocalyptic number.

It is an amenable number.

420825704 is an abundant number, since it is smaller than the sum of its proper divisors (428918716).

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

420825704 is a wasteful number, since it uses less digits than its factorization.

420825704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4046420 (or 4046416 counting only the distinct ones).

The product of its (nonzero) digits is 17920, while the sum is 32.

The square root of 420825704 is about 20514.0367553536. The cubic root of 420825704 is about 749.3776787274.

The spelling of 420825704 in words is "four hundred twenty million, eight hundred twenty-five thousand, seven hundred four".