425502720 has 384 divisors, whose sum is σ = 1611792000. Its totient is φ = 107495424.

The previous prime is 425502719. The next prime is 425502773. The reversal of 425502720 is 27205524.

425502720 is a `hidden beast` number, since 42 + 550 + 2 + 72 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22394871 + ... + 22394889.

It is an arithmetic number, because the mean of its divisors is an integer number (4197375).

Almost surely, 2^425502720 is an apocalyptic number.

425502720 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 425502720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (805896000).

425502720 is an abundant number, since it is smaller than the sum of its proper divisors (1186289280).

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

425502720 is an frugal number, since it uses more digits than its factorization.

425502720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 29 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 27.

The square root of 425502720 is about 20627.7172755494. The cubic root of 425502720 is about 752.1436273121.

The spelling of 425502720 in words is "four hundred twenty-five million, five hundred two thousand, seven hundred twenty".