1299456 has 88 divisors (see below), whose sum is σ = 3930240. Its totient is φ = 423936.

The previous prime is 1299451. The next prime is 1299457. The reversal of 1299456 is 6549921.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1299456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1299451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27625 + ... + 27671.

2^1299456 is an apocalyptic number.

1299456 is a gapful number since it is divisible by the number (16) 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 1299456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1965120).

1299456 is an abundant number, since it is smaller than the sum of its proper divisors (2630784).

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

1299456 is an equidigital number, since it uses as much as digits as its factorization.

1299456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 52 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1299456 is about 1139.9368403556. The cubic root of 1299456 is about 109.1240626506.

The spelling of 1299456 in words is "one million, two hundred ninety-nine thousand, four hundred fifty-six".