425431530 has 48 divisors (see below), whose sum is σ = 1127004840. Its totient is φ = 111306624.

The previous prime is 425431519. The next prime is 425431543. The reversal of 425431530 is 35134524.

It can be written as a sum of positive squares in 4 ways, for example, as 296631729 + 128799801 = 17223^2 + 11349^2 .

It is a junction number, because it is equal to n+sod(n) for n = 425431494 and 425431503.

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, 39825 + ... + 49364.

Almost surely, 2^425431530 is an apocalyptic number.

425431530 is an abundant number, since it is smaller than the sum of its proper divisors (701573310).

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

425431530 is a wasteful number, since it uses less digits than its factorization.

425431530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89255 (or 89252 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 425431530 is about 20625.9916125262. The cubic root of 425431530 is about 752.1016784292.

The spelling of 425431530 in words is "four hundred twenty-five million, four hundred thirty-one thousand, five hundred thirty".