394961092 has 24 divisors (see below), whose sum is σ = 726750360. Its totient is φ = 187541760.

The previous prime is 394961087. The next prime is 394961093. The reversal of 394961092 is 290169493.

It can be written as a sum of positive squares in 4 ways, for example, as 74407876 + 320553216 = 8626^2 + 17904^2 .

It is not an unprimeable number, because it can be changed into a prime (394961093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20833 + ... + 34984.

It is an arithmetic number, because the mean of its divisors is an integer number (30281265).

Almost surely, 2^394961092 is an apocalyptic number.

It is an amenable number.

394961092 is a deficient number, since it is larger than the sum of its proper divisors (331789268).

394961092 is a wasteful number, since it uses less digits than its factorization.

394961092 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55911 (or 55909 counting only the distinct ones).

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 394961092 is about 19873.6280532770. The cubic root of 394961092 is about 733.6993004389.

The spelling of 394961092 in words is "three hundred ninety-four million, nine hundred sixty-one thousand, ninety-two".