394274160 has 120 divisors (see below), whose sum is σ = 1513281120. Its totient is φ = 90118656.

The previous prime is 394274159. The next prime is 394274173. The reversal of 394274160 is 61472493.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×394274160² = 310904226487411200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 34075 + ... + 44154.

It is an arithmetic number, because the mean of its divisors is an integer number (12610676).

Almost surely, 2^394274160 is an apocalyptic number.

394274160 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394274160 is an abundant number, since it is smaller than the sum of its proper divisors (1119006960).

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

394274160 is a wasteful number, since it uses less digits than its factorization.

394274160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78255 (or 78246 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 394274160 is about 19856.3380309663. The cubic root of 394274160 is about 733.2736939561.

The spelling of 394274160 in words is "three hundred ninety-four million, two hundred seventy-four thousand, one hundred sixty".