425444880 has 160 divisors (see below), whose sum is σ = 1517831424. Its totient is φ = 96565248.

The previous prime is 425444879. The next prime is 425444897. The reversal of 425444880 is 88444524.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262954 + ... + 264566.

Almost surely, 2^425444880 is an apocalyptic number.

425444880 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 425444880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (758915712).

425444880 is an abundant number, since it is smaller than the sum of its proper divisors (1092386544).

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

425444880 is a wasteful number, since it uses less digits than its factorization.

425444880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1793 (or 1787 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 39.

The square root of 425444880 is about 20626.3152307920. The cubic root of 425444880 is about 752.1095453061.

The spelling of 425444880 in words is "four hundred twenty-five million, four hundred forty-four thousand, eight hundred eighty".