394980960 has 192 divisors, whose sum is σ = 1367331840. Its totient is φ = 95047680.

The previous prime is 394980959. The next prime is 394980983. The reversal of 394980960 is 69089493.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1261764 + ... + 1262076.

It is an arithmetic number, because the mean of its divisors is an integer number (7121520).

Almost surely, 2^394980960 is an apocalyptic number.

394980960 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394980960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (683665920).

394980960 is an abundant number, since it is smaller than the sum of its proper divisors (972350880).

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

394980960 is a wasteful number, since it uses less digits than its factorization.

394980960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581 (or 573 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 394980960 is about 19874.1279053950. The cubic root of 394980960 is about 733.7116028265.

The spelling of 394980960 in words is "three hundred ninety-four million, nine hundred eighty thousand, nine hundred sixty".