425279880 has 96 divisors (see below), whose sum is σ = 1415919960. Its totient is φ = 110638080.

The previous prime is 425279851. The next prime is 425280001. The reversal of 425279880 is 88972524.

425279880 is a `hidden beast` number, since 42 + 527 + 9 + 8 + 80 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 150847524 + 274432356 = 12282^2 + 16566^2 .

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 354 + ... + 29166.

Almost surely, 2^425279880 is an apocalyptic number.

425279880 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 425279880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (707959980).

425279880 is an abundant number, since it is smaller than the sum of its proper divisors (990640080).

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

425279880 is a wasteful number, since it uses less digits than its factorization.

425279880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28871 (or 28864 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The square root of 425279880 is about 20622.3150979709. The cubic root of 425279880 is about 752.0123026884.

The spelling of 425279880 in words is "four hundred twenty-five million, two hundred seventy-nine thousand, eight hundred eighty".