394151120 has 80 divisors (see below), whose sum is σ = 1058557248. Its totient is φ = 134891520.

The previous prime is 394151117. The next prime is 394151183. The reversal of 394151120 is 21151493.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 394151120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1787 + ... + 28133.

Almost surely, 2^394151120 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 394151120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (529278624).

394151120 is an abundant number, since it is smaller than the sum of its proper divisors (664406128).

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

394151120 is a wasteful number, since it uses less digits than its factorization.

394151120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26388 (or 26382 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 394151120 is about 19853.2395341415. The cubic root of 394151120 is about 733.1974091513.

The spelling of 394151120 in words is "three hundred ninety-four million, one hundred fifty-one thousand, one hundred twenty".