394446080 has 216 divisors, whose sum is σ = 1160419680. Its totient is φ = 127733760.

The previous prime is 394446071. The next prime is 394446103. The reversal of 394446080 is 80644493.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent 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, 1191515 + ... + 1191845.

Almost surely, 2^394446080 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 394446080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (580209840).

394446080 is an abundant number, since it is smaller than the sum of its proper divisors (765973600).

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

394446080 is a wasteful number, since it uses less digits than its factorization.

394446080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385 (or 364 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 38.

The square root of 394446080 is about 19860.6666554776. Note that the first 4 decimals coincide. The cubic root of 394446080 is about 733.3802577871.

The spelling of 394446080 in words is "three hundred ninety-four million, four hundred forty-six thousand, eighty".