425404320 has 384 divisors, whose sum is σ = 1588543488. Its totient is φ = 94617600.

The previous prime is 425404307. The next prime is 425404321. The reversal of 425404320 is 23404524.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (425404321) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3764584 + ... + 3764696.

It is an arithmetic number, because the mean of its divisors is an integer number (4136832).

Almost surely, 2^425404320 is an apocalyptic number.

425404320 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 425404320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (794271744).

425404320 is an abundant number, since it is smaller than the sum of its proper divisors (1163139168).

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

425404320 is a wasteful number, since it uses less digits than its factorization.

425404320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 425404320 is about 20625.3319973279. The cubic root of 425404320 is about 752.0856436335.

Adding to 425404320 its reverse (23404524), we get a palindrome (448808844).

The spelling of 425404320 in words is "four hundred twenty-five million, four hundred four thousand, three hundred twenty".