425044816 has 30 divisors (see below), whose sum is σ = 957979050. Its totient is φ = 182161728.

The previous prime is 425044787. The next prime is 425044817. The reversal of 425044816 is 618440524.

It can be written as a sum of positive squares in only one way, i.e., 373262400 + 51782416 = 19320^2 + 7196^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425044817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 270291 + ... + 271858.

It is an arithmetic number, because the mean of its divisors is an integer number (31932635).

Almost surely, 2^425044816 is an apocalyptic number.

It is an amenable number.

425044816 is an abundant number, since it is smaller than the sum of its proper divisors (532934234).

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

425044816 is a wasteful number, since it uses less digits than its factorization.

425044816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542171 (or 542158 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 34.

The square root of 425044816 is about 20616.6150470925. The cubic root of 425044816 is about 751.8737244587.

The spelling of 425044816 in words is "four hundred twenty-five million, forty-four thousand, eight hundred sixteen".