425267280 has 320 divisors, whose sum is σ = 1542758400. Its totient is φ = 107573760.

The previous prime is 425267273. The next prime is 425267299. The reversal of 425267280 is 82762524.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5989645 + ... + 5989715.

It is an arithmetic number, because the mean of its divisors is an integer number (4821120).

Almost surely, 2^425267280 is an apocalyptic number.

425267280 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 425267280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (771379200).

425267280 is an abundant number, since it is smaller than the sum of its proper divisors (1117491120).

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

425267280 is a wasteful number, since it uses less digits than its factorization.

425267280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199 (or 187 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The square root of 425267280 is about 20622.0096013943. The cubic root of 425267280 is about 752.0048758549.

The spelling of 425267280 in words is "four hundred twenty-five million, two hundred sixty-seven thousand, two hundred eighty".