394421146 has 16 divisors (see below), whose sum is σ = 684298944. Its totient is φ = 167000544.

The previous prime is 394421119. The next prime is 394421173. The reversal of 394421146 is 641124493.

It is an interprime number because it is at equal distance from previous prime (394421119) and next prime (394421173).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 168555 + ... + 170878.

It is an arithmetic number, because the mean of its divisors is an integer number (42768684).

Almost surely, 2^394421146 is an apocalyptic number.

394421146 is a deficient number, since it is larger than the sum of its proper divisors (289877798).

394421146 is a wasteful number, since it uses less digits than its factorization.

394421146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339525.

The product of its digits is 20736, while the sum is 34.

The square root of 394421146 is about 19860.0389224191. The cubic root of 394421146 is about 733.3648044804.

The spelling of 394421146 in words is "three hundred ninety-four million, four hundred twenty-one thousand, one hundred forty-six".