394000272 has 120 divisors (see below), whose sum is σ = 1149101304. Its totient is φ = 125908992.

The previous prime is 394000259. The next prime is 394000291. The reversal of 394000272 is 272000493.

394000272 is a `hidden beast` number, since 394 + 0 + 0 + 0 + 272 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 30869136 + 363131136 = 5556^2 + 19056^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 388438 + ... + 389450.

Almost surely, 2^394000272 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 394000272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (574550652).

394000272 is an abundant number, since it is smaller than the sum of its proper divisors (755101032).

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

394000272 is a wasteful number, since it uses less digits than its factorization.

394000272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1137 (or 1128 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 394000272 is about 19849.4400928590. The cubic root of 394000272 is about 733.1038617192.

The spelling of 394000272 in words is "three hundred ninety-four million, two hundred seventy-two", and thus it is an aban number.