1399166194 has 8 divisors (see below), whose sum is σ = 2209209840. Its totient is φ = 662762916.

The previous prime is 1399166191. The next prime is 1399166221. The reversal of 1399166194 is 4916619931.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1399166191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18410044 + ... + 18410119.

It is an arithmetic number, because the mean of its divisors is an integer number (276151230).

Almost surely, 2^1399166194 is an apocalyptic number.

1399166194 is a deficient number, since it is larger than the sum of its proper divisors (810043646).

1399166194 is a wasteful number, since it uses less digits than its factorization.

1399166194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36820184.

The product of its digits is 314928, while the sum is 49.

The square root of 1399166194 is about 37405.4300068854. The cubic root of 1399166194 is about 1118.4668099882.

The spelling of 1399166194 in words is "one billion, three hundred ninety-nine million, one hundred sixty-six thousand, one hundred ninety-four".