394530450 has 48 divisors (see below), whose sum is σ = 981338976. Its totient is φ = 104896000.

The previous prime is 394530449. The next prime is 394530491. The reversal of 394530450 is 54035493.

It is a Curzon number.

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, 49225 + ... + 56675.

It is an arithmetic number, because the mean of its divisors is an integer number (20444562).

Almost surely, 2^394530450 is an apocalyptic number.

394530450 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 394530450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490669488).

394530450 is an abundant number, since it is smaller than the sum of its proper divisors (586808526).

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

394530450 is a wasteful number, since it uses less digits than its factorization.

394530450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7819 (or 7814 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 394530450 is about 19862.7905894414. The cubic root of 394530450 is about 733.4325428220.

The spelling of 394530450 in words is "three hundred ninety-four million, five hundred thirty thousand, four hundred fifty".