425777280 has 128 divisors (see below), whose sum is σ = 1370977920. Its totient is φ = 112386048.

The previous prime is 425777269. The next prime is 425777299. The reversal of 425777280 is 82777524.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196684 + ... + 198836.

It is an arithmetic number, because the mean of its divisors is an integer number (10710765).

Almost surely, 2^425777280 is an apocalyptic number.

425777280 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 425777280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (685488960).

425777280 is an abundant number, since it is smaller than the sum of its proper divisors (945200640).

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

425777280 is a wasteful number, since it uses less digits than its factorization.

425777280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2278 (or 2266 counting only the distinct ones).

The product of its (nonzero) digits is 219520, while the sum is 42.

The square root of 425777280 is about 20634.3713255335. The cubic root of 425777280 is about 752.3053686620.

The spelling of 425777280 in words is "four hundred twenty-five million, seven hundred seventy-seven thousand, two hundred eighty".