1393889106 has 8 divisors (see below), whose sum is σ = 2787778224. Its totient is φ = 464629700.

The previous prime is 1393889099. The next prime is 1393889117. The reversal of 1393889106 is 6019883931.

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

1393889106 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116157420 + ... + 116157431.

It is an arithmetic number, because the mean of its divisors is an integer number (348472278).

Almost surely, 2^1393889106 is an apocalyptic number.

1393889106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1393889106 is a wasteful number, since it uses less digits than its factorization.

1393889106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232314856.

The product of its (nonzero) digits is 279936, while the sum is 48.

The square root of 1393889106 is about 37334.8243065372. The cubic root of 1393889106 is about 1117.0589039344.

The spelling of 1393889106 in words is "one billion, three hundred ninety-three million, eight hundred eighty-nine thousand, one hundred six".