425450394 has 80 divisors (see below), whose sum is σ = 1009140000. Its totient is φ = 133599456.

The previous prime is 425450371. The next prime is 425450401. The reversal of 425450394 is 493054524.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 852357 + ... + 852855.

It is an arithmetic number, because the mean of its divisors is an integer number (12614250).

Almost surely, 2^425450394 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 425450394, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504570000).

425450394 is an abundant number, since it is smaller than the sum of its proper divisors (583689606).

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

425450394 is a wasteful number, since it uses less digits than its factorization.

425450394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 800 counting only the distinct ones).

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

The square root of 425450394 is about 20626.4488945625. The cubic root of 425450394 is about 752.1127945434.

The spelling of 425450394 in words is "four hundred twenty-five million, four hundred fifty thousand, three hundred ninety-four".