1399530850 has 12 divisors (see below), whose sum is σ = 2603127474. Its totient is φ = 559812320.

The previous prime is 1399530817. The next prime is 1399530851. The reversal of 1399530850 is 580359931.

It can be written as a sum of positive squares in 3 ways, for example, as 712409481 + 687121369 = 26691^2 + 26213^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1399530797 and 1399530806.

It is not an unprimeable number, because it can be changed into a prime (1399530851) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13995259 + ... + 13995358.

Almost surely, 2^1399530850 is an apocalyptic number.

1399530850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1399530850 is a deficient number, since it is larger than the sum of its proper divisors (1203596624).

1399530850 is a wasteful number, since it uses less digits than its factorization.

1399530850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27990629 (or 27990624 counting only the distinct ones).

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1399530850 is about 37410.3040618491. The cubic root of 1399530850 is about 1118.5639679021.

The spelling of 1399530850 in words is "one billion, three hundred ninety-nine million, five hundred thirty thousand, eight hundred fifty".