1399169016 has 48 divisors (see below), whose sum is σ = 4330762800. Its totient is φ = 399762432.

The previous prime is 1399168999. The next prime is 1399169021. The reversal of 1399169016 is 6109619931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1387561 + ... + 1388568.

It is an arithmetic number, because the mean of its divisors is an integer number (90224225).

Almost surely, 2^1399169016 is an apocalyptic number.

It is an amenable number.

1399169016 is an abundant number, since it is smaller than the sum of its proper divisors (2931593784).

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

1399169016 is a wasteful number, since it uses less digits than its factorization.

1399169016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2776148 (or 2776141 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 1399169016 is about 37405.4677286623. The cubic root of 1399169016 is about 1118.4675619387.

The spelling of 1399169016 in words is "one billion, three hundred ninety-nine million, one hundred sixty-nine thousand, sixteen".