1399268902 has 12 divisors (see below), whose sum is σ = 2115841068. Its totient is φ = 693993300.

The previous prime is 1399268837. The next prime is 1399268903. The reversal of 1399268902 is 2098629931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399268903) 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, 604327 + ... + 606637.

It is an arithmetic number, because the mean of its divisors is an integer number (176320089).

Almost surely, 2^1399268902 is an apocalyptic number.

1399268902 is a deficient number, since it is larger than the sum of its proper divisors (716572166).

1399268902 is an frugal number, since it uses more digits than its factorization.

1399268902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4755 (or 2444 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 49.

The square root of 1399268902 is about 37406.8028839675. The cubic root of 1399268902 is about 1118.4941769249.

The spelling of 1399268902 in words is "one billion, three hundred ninety-nine million, two hundred sixty-eight thousand, nine hundred two".