394337492 has 6 divisors (see below), whose sum is σ = 690090618. Its totient is φ = 197168744.

The previous prime is 394337483. The next prime is 394337497. The reversal of 394337492 is 294733493.

It can be written as a sum of positive squares in only one way, i.e., 244421956 + 149915536 = 15634^2 + 12244^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394337497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49292183 + ... + 49292190.

It is an arithmetic number, because the mean of its divisors is an integer number (115015103).

Almost surely, 2^394337492 is an apocalyptic number.

It is an amenable number.

394337492 is a deficient number, since it is larger than the sum of its proper divisors (295753126).

394337492 is a wasteful number, since it uses less digits than its factorization.

394337492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98584377 (or 98584375 counting only the distinct ones).

The product of its digits is 489888, while the sum is 44.

The square root of 394337492 is about 19857.9327222146. The cubic root of 394337492 is about 733.3129536118.

The spelling of 394337492 in words is "three hundred ninety-four million, three hundred thirty-seven thousand, four hundred ninety-two".