394294340 has 24 divisors (see below), whose sum is σ = 903292992. Its totient is φ = 143379680.

The previous prime is 394294339. The next prime is 394294349. The reversal of 394294340 is 43492493.

It is a junction number, because it is equal to n+sod(n) for n = 394294294 and 394294303.

It is not an unprimeable number, because it can be changed into a prime (394294349) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 895904 + ... + 896343.

It is an arithmetic number, because the mean of its divisors is an integer number (37637208).

Almost surely, 2^394294340 is an apocalyptic number.

It is an amenable number.

394294340 is an abundant number, since it is smaller than the sum of its proper divisors (508998652).

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

394294340 is a wasteful number, since it uses less digits than its factorization.

394294340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1792267 (or 1792265 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 38.

The square root of 394294340 is about 19856.8461745565. The cubic root of 394294340 is about 733.2862040419.

The spelling of 394294340 in words is "three hundred ninety-four million, two hundred ninety-four thousand, three hundred forty".