425143180 has 72 divisors (see below), whose sum is σ = 1121579424. Its totient is φ = 132506880.

The previous prime is 425143151. The next prime is 425143223. The reversal of 425143180 is 81341524.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4392 + ... + 29488.

It is an arithmetic number, because the mean of its divisors is an integer number (15577492).

Almost surely, 2^425143180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425143180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560789712).

425143180 is an abundant number, since it is smaller than the sum of its proper divisors (696436244).

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

425143180 is a wasteful number, since it uses less digits than its factorization.

425143180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25135 (or 25122 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 425143180 is about 20619.0004607401. Note that the first 3 decimals coincide. The cubic root of 425143180 is about 751.9317196002.

The spelling of 425143180 in words is "four hundred twenty-five million, one hundred forty-three thousand, one hundred eighty".