425493450 has 72 divisors (see below), whose sum is σ = 1148429100. Its totient is φ = 112942080.

The previous prime is 425493433. The next prime is 425493461. The reversal of 425493450 is 54394524.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 273538521 + 151954929 = 16539^2 + 12327^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 100986 + ... + 105114.

Almost surely, 2^425493450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425493450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574214550).

425493450 is an abundant number, since it is smaller than the sum of its proper divisors (722935650).

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

425493450 is a wasteful number, since it uses less digits than its factorization.

425493450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4376 (or 4368 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

The square root of 425493450 is about 20627.4925766560. The cubic root of 425493450 is about 752.1381652067.

The spelling of 425493450 in words is "four hundred twenty-five million, four hundred ninety-three thousand, four hundred fifty".