425583720 has 160 divisors (see below), whose sum is σ = 1492888320. Its totient is φ = 108535680.

The previous prime is 425583703. The next prime is 425583733. The reversal of 425583720 is 27385524.

425583720 is a `hidden beast` number, since 4 + 2 + 5 + 583 + 72 + 0 = 666.

It is a super-2 number, since 2×425583720² = 362243005458076800, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71665 + ... + 77375.

It is an arithmetic number, because the mean of its divisors is an integer number (9330552).

Almost surely, 2^425583720 is an apocalyptic number.

425583720 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 425583720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (746444160).

425583720 is an abundant number, since it is smaller than the sum of its proper divisors (1067304600).

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

425583720 is a wasteful number, since it uses less digits than its factorization.

425583720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5757 (or 5744 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 425583720 is about 20629.6805598148. The cubic root of 425583720 is about 752.1913510715.

The spelling of 425583720 in words is "four hundred twenty-five million, five hundred eighty-three thousand, seven hundred twenty".