394297214 has 4 divisors (see below), whose sum is σ = 591445824. Its totient is φ = 197148606.

The previous prime is 394297199. The next prime is 394297217. The reversal of 394297214 is 412792493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 412792493 = 47 ⋅8782819.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394297217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98574302 + ... + 98574305.

It is an arithmetic number, because the mean of its divisors is an integer number (147861456).

Almost surely, 2^394297214 is an apocalyptic number.

394297214 is a deficient number, since it is larger than the sum of its proper divisors (197148610).

394297214 is a wasteful number, since it uses less digits than its factorization.

394297214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197148609.

The product of its digits is 108864, while the sum is 41.

The square root of 394297214 is about 19856.9185424124. The cubic root of 394297214 is about 733.2879856715.

The spelling of 394297214 in words is "three hundred ninety-four million, two hundred ninety-seven thousand, two hundred fourteen".