1399106406 has 8 divisors (see below), whose sum is σ = 2798212824. Its totient is φ = 466368800.

The previous prime is 1399106389. The next prime is 1399106413. The reversal of 1399106406 is 6046019931.

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

1399106406 is an admirable number.

It is a congruent 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, 116592195 + ... + 116592206.

It is an arithmetic number, because the mean of its divisors is an integer number (349776603).

Almost surely, 2^1399106406 is an apocalyptic number.

1399106406 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.

1399106406 is a wasteful number, since it uses less digits than its factorization.

1399106406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233184406.

The product of its (nonzero) digits is 34992, while the sum is 39.

The square root of 1399106406 is about 37404.6308095669. The cubic root of 1399106406 is about 1118.4508786317.

The spelling of 1399106406 in words is "one billion, three hundred ninety-nine million, one hundred six thousand, four hundred six".