394822400 has 162 divisors, whose sum is σ = 1137700620. Its totient is φ = 135260160.

The previous prime is 394822397. The next prime is 394822447. The reversal of 394822400 is 4228493.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 312971 + ... + 314229.

Almost surely, 2^394822400 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 394822400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (568850310).

394822400 is an abundant number, since it is smaller than the sum of its proper divisors (742878220).

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

394822400 is a wasteful number, since it uses less digits than its factorization.

394822400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1299 (or 1273 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 394822400 is about 19870.1383991154. The cubic root of 394822400 is about 733.6134100068.

The spelling of 394822400 in words is "three hundred ninety-four million, eight hundred twenty-two thousand, four hundred".