1342819 has 4 divisors (see below), whose sum is σ = 1347696. Its totient is φ = 1337944.

The previous prime is 1342801. The next prime is 1342829. The reversal of 1342819 is 9182431.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342819 is a prime.

It is a super-2 number, since 2×1342819² = 3606325733522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1342829) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1999 + ... + 2584.

It is an arithmetic number, because the mean of its divisors is an integer number (336924).

2^1342819 is an apocalyptic number.

1342819 is a deficient number, since it is larger than the sum of its proper divisors (4877).

1342819 is an equidigital number, since it uses as much as digits as its factorization.

1342819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876.

The product of its digits is 1728, while the sum is 28.

The square root of 1342819 is about 1158.8006731099. The cubic root of 1342819 is about 110.3246332825.

The spelling of 1342819 in words is "one million, three hundred forty-two thousand, eight hundred nineteen".