394259272 has 64 divisors (see below), whose sum is σ = 871963200. Its totient is φ = 165162240.

The previous prime is 394259251. The next prime is 394259273. The reversal of 394259272 is 272952493.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (394259273) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 58678 + ... + 65050.

It is an arithmetic number, because the mean of its divisors is an integer number (13624425).

Almost surely, 2^394259272 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 394259272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (435981600).

394259272 is an abundant number, since it is smaller than the sum of its proper divisors (477703928).

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

394259272 is a wasteful number, since it uses less digits than its factorization.

394259272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6446 (or 6442 counting only the distinct ones).

The product of its digits is 272160, while the sum is 43.

The square root of 394259272 is about 19855.9631345347. The cubic root of 394259272 is about 733.2644642396.

The spelling of 394259272 in words is "three hundred ninety-four million, two hundred fifty-nine thousand, two hundred seventy-two".