394609450 has 12 divisors (see below), whose sum is σ = 733973670. Its totient is φ = 157843760.

The previous prime is 394609417. The next prime is 394609493. The reversal of 394609450 is 54906493.

It can be written as a sum of positive squares in 3 ways, for example, as 307616521 + 86992929 = 17539^2 + 9327^2 .

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 3946045 + ... + 3946144.

Almost surely, 2^394609450 is an apocalyptic number.

394609450 is a deficient number, since it is larger than the sum of its proper divisors (339364220).

394609450 is a wasteful number, since it uses less digits than its factorization.

394609450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7892201 (or 7892196 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The square root of 394609450 is about 19864.7791329277. The cubic root of 394609450 is about 733.4814932507.

The spelling of 394609450 in words is "three hundred ninety-four million, six hundred nine thousand, four hundred fifty".