394832880 has 400 divisors, whose sum is σ = 1525006560. Its totient is φ = 94058496.

The previous prime is 394832843. The next prime is 394832899. The reversal of 394832880 is 88238493.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3622266 + ... + 3622374.

Almost surely, 2^394832880 is an apocalyptic number.

394832880 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 394832880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (762503280).

394832880 is an abundant number, since it is smaller than the sum of its proper divisors (1130173680).

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

394832880 is a wasteful number, since it uses less digits than its factorization.

394832880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190 (or 175 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The square root of 394832880 is about 19870.4021096706. The cubic root of 394832880 is about 733.6199008581.

The spelling of 394832880 in words is "three hundred ninety-four million, eight hundred thirty-two thousand, eight hundred eighty".