1299528408 has 32 divisors (see below), whose sum is σ = 3419812800. Its totient is φ = 410377248.

The previous prime is 1299528397. The next prime is 1299528479. The reversal of 1299528408 is 8048259921.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1424466 + ... + 1425377.

It is an arithmetic number, because the mean of its divisors is an integer number (106869150).

Almost surely, 2^1299528408 is an apocalyptic number.

It is an amenable number.

1299528408 is an abundant number, since it is smaller than the sum of its proper divisors (2120284392).

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

1299528408 is a wasteful number, since it uses less digits than its factorization.

1299528408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849871 (or 2849867 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 48.

The square root of 1299528408 is about 36048.9723570589. The cubic root of 1299528408 is about 1091.2608947529.

The spelling of 1299528408 in words is "one billion, two hundred ninety-nine million, five hundred twenty-eight thousand, four hundred eight".