1299244888 has 8 divisors (see below), whose sum is σ = 2436084180. Its totient is φ = 649622440.

The previous prime is 1299244883. The next prime is 1299244889. The reversal of 1299244888 is 8884429921.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299244883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81202798 + ... + 81202813.

Almost surely, 2^1299244888 is an apocalyptic number.

It is an amenable number.

1299244888 is a deficient number, since it is larger than the sum of its proper divisors (1136839292).

1299244888 is a wasteful number, since it uses less digits than its factorization.

1299244888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162405617 (or 162405613 counting only the distinct ones).

The product of its digits is 2654208, while the sum is 55.

The square root of 1299244888 is about 36045.0397142242. The cubic root of 1299244888 is about 1091.1815283227.

The spelling of 1299244888 in words is "one billion, two hundred ninety-nine million, two hundred forty-four thousand, eight hundred eighty-eight".