208194394 has 16 divisors (see below), whose sum is σ = 319552128. Its totient is φ = 101704032.

The previous prime is 208194383. The next prime is 208194499. The reversal of 208194394 is 493491802.

208194394 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 8959 + ... + 22285.

It is an arithmetic number, because the mean of its divisors is an integer number (19972008).

Almost surely, 2^208194394 is an apocalyptic number.

208194394 is a deficient number, since it is larger than the sum of its proper divisors (111357734).

208194394 is a wasteful number, since it uses less digits than its factorization.

208194394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13509.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 208194394 is about 14428.9429273249. The cubic root of 208194394 is about 592.6837368055.

The spelling of 208194394 in words is "two hundred eight million, one hundred ninety-four thousand, three hundred ninety-four".