1299960 has 96 divisors (see below), whose sum is σ = 4436640. Its totient is φ = 329472.

The previous prime is 1299953. The next prime is 1299979. The reversal of 1299960 is 699921.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 8202 + ... + 8358.

It is an arithmetic number, because the mean of its divisors is an integer number (46215).

2^1299960 is an apocalyptic number.

1299960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2218320).

1299960 is an abundant number, since it is smaller than the sum of its proper divisors (3136680).

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

1299960 is a wasteful number, since it uses less digits than its factorization.

1299960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 190 counting only the distinct ones).

The product of its (nonzero) digits is 8748, while the sum is 36.

The square root of 1299960 is about 1140.1578838038. The cubic root of 1299960 is about 109.1381689173.

The spelling of 1299960 in words is "one million, two hundred ninety-nine thousand, nine hundred sixty".