425865280 has 56 divisors (see below), whose sum is σ = 1021933440. Its totient is φ = 169029120.

The previous prime is 425865269. The next prime is 425865287. The reversal of 425865280 is 82568524.

It is a super-2 number, since 2×425865280² = 362722473418956800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (425865287) 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, 36841 + ... + 46999.

Almost surely, 2^425865280 is an apocalyptic number.

425865280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425865280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510966720).

425865280 is an abundant number, since it is smaller than the sum of its proper divisors (596068160).

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

425865280 is a wasteful number, since it uses less digits than its factorization.

425865280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10307 (or 10297 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 40.

The square root of 425865280 is about 20636.5035798218. The cubic root of 425865280 is about 752.3571941234.

The spelling of 425865280 in words is "four hundred twenty-five million, eight hundred sixty-five thousand, two hundred eighty".