394213430 has 32 divisors (see below), whose sum is σ = 765059904. Its totient is φ = 145385856.

The previous prime is 394213411. The next prime is 394213447. The reversal of 394213430 is 34312493.

It is a junction number, because it is equal to n+sod(n) for n = 394213393 and 394213402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 187847 + ... + 189933.

It is an arithmetic number, because the mean of its divisors is an integer number (23908122).

Almost surely, 2^394213430 is an apocalyptic number.

394213430 is a deficient number, since it is larger than the sum of its proper divisors (370846474).

394213430 is a wasteful number, since it uses less digits than its factorization.

394213430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 394213430 is about 19854.8087374318. The cubic root of 394213430 is about 733.2360433375.

The spelling of 394213430 in words is "three hundred ninety-four million, two hundred thirteen thousand, four hundred thirty".