1299442 has 8 divisors (see below), whose sum is σ = 1976832. Its totient is φ = 640500.

The previous prime is 1299439. The next prime is 1299449. The reversal of 1299442 is 2449921.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1299442² = 3377099022728, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1299449) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4434 + ... + 4717.

It is an arithmetic number, because the mean of its divisors is an integer number (247104).

2^1299442 is an apocalyptic number.

1299442 is a deficient number, since it is larger than the sum of its proper divisors (677390).

1299442 is an equidigital number, since it uses as much as digits as its factorization.

1299442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9224.

The product of its digits is 5184, while the sum is 31.

The square root of 1299442 is about 1139.9306996480. The cubic root of 1299442 is about 109.1236707578.

The spelling of 1299442 in words is "one million, two hundred ninety-nine thousand, four hundred forty-two".