394335120 has 80 divisors (see below), whose sum is σ = 1286792640. Its totient is φ = 99620352.

The previous prime is 394335119. The next prime is 394335131. The reversal of 394335120 is 21533493.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38679 + ... + 47798.

It is an arithmetic number, because the mean of its divisors is an integer number (16084908).

Almost surely, 2^394335120 is an apocalyptic number.

394335120 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394335120 is an abundant number, since it is smaller than the sum of its proper divisors (892457520).

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

394335120 is a wasteful number, since it uses less digits than its factorization.

394335120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86512 (or 86506 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 30.

The square root of 394335120 is about 19857.8729978817. The cubic root of 394335120 is about 733.3114832792.

The spelling of 394335120 in words is "three hundred ninety-four million, three hundred thirty-five thousand, one hundred twenty".