425402320 has 160 divisors (see below), whose sum is σ = 1187424000. Its totient is φ = 141571584.

The previous prime is 425402297. The next prime is 425402323. The reversal of 425402320 is 23204524.

It is a super-2 number, since 2×425402320² = 361934267722764800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 425402291 and 425402300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425402323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1015071 + ... + 1015489.

It is an arithmetic number, because the mean of its divisors is an integer number (7421400).

Almost surely, 2^425402320 is an apocalyptic number.

425402320 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 425402320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (593712000).

425402320 is an abundant number, since it is smaller than the sum of its proper divisors (762021680).

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

425402320 is a wasteful number, since it uses less digits than its factorization.

425402320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490 (or 470 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 425402320 is about 20625.2835132029. The cubic root of 425402320 is about 752.0844650108.

Adding to 425402320 its reverse (23204524), we get a palindrome (448606844).

The spelling of 425402320 in words is "four hundred twenty-five million, four hundred two thousand, three hundred twenty".