1399850269 has 4 divisors (see below), whose sum is σ = 1407179520. Its totient is φ = 1392521020.

The previous prime is 1399850233. The next prime is 1399850281. The reversal of 1399850269 is 9620589931.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1399850269 - 2²³ = 1391461661 is a prime.

It is a super-2 number, since 2×1399850269² = 3919161551238744722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399850299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3664339 + ... + 3664720.

It is an arithmetic number, because the mean of its divisors is an integer number (351794880).

Almost surely, 2^1399850269 is an apocalyptic number.

It is an amenable number.

1399850269 is a deficient number, since it is larger than the sum of its proper divisors (7329251).

1399850269 is an equidigital number, since it uses as much as digits as its factorization.

1399850269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7329250.

The product of its (nonzero) digits is 1049760, while the sum is 52.

The square root of 1399850269 is about 37414.5729495874. The cubic root of 1399850269 is about 1118.6490591324.

The spelling of 1399850269 in words is "one billion, three hundred ninety-nine million, eight hundred fifty thousand, two hundred sixty-nine".