394947612 has 18 divisors (see below), whose sum is σ = 998339888. Its totient is φ = 131649192.

The previous prime is 394947601. The next prime is 394947613. The reversal of 394947612 is 216749493.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394947613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5485348 + ... + 5485419.

Almost surely, 2^394947612 is an apocalyptic number.

It is an amenable number.

394947612 is an abundant number, since it is smaller than the sum of its proper divisors (603392276).

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

394947612 is a wasteful number, since it uses less digits than its factorization.

394947612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10970777 (or 10970772 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The square root of 394947612 is about 19873.2889074758. The cubic root of 394947612 is about 733.6909533053.

The spelling of 394947612 in words is "three hundred ninety-four million, nine hundred forty-seven thousand, six hundred twelve".