1299408 has 80 divisors (see below), whose sum is σ = 3856896. Its totient is φ = 373120.

The previous prime is 1299379. The next prime is 1299437. The reversal of 1299408 is 8049921.

It is an interprime number because it is at equal distance from previous prime (1299379) and next prime (1299437).

It is a super-2 number, since 2×1299408² = 3376922300928, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12091 + ... + 12197.

2^1299408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1299408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1928448).

1299408 is an abundant number, since it is smaller than the sum of its proper divisors (2557488).

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

1299408 is a wasteful number, since it uses less digits than its factorization.

1299408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 146 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 1299408 is about 1139.9157863632. The cubic root of 1299408 is about 109.1227190064.

The spelling of 1299408 in words is "one million, two hundred ninety-nine thousand, four hundred eight".