1819342 has 8 divisors (see below), whose sum is σ = 3118896. Its totient is φ = 779712.

The previous prime is 1819339. The next prime is 1819343. The reversal of 1819342 is 2439181.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1819342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1819343) 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, 64963 + ... + 64990.

It is an arithmetic number, because the mean of its divisors is an integer number (389862).

2^1819342 is an apocalyptic number.

1819342 is a deficient number, since it is larger than the sum of its proper divisors (1299554).

1819342 is a wasteful number, since it uses less digits than its factorization.

1819342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129962.

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

The square root of 1819342 is about 1348.8298632518. The cubic root of 1819342 is about 122.0781994396.

The spelling of 1819342 in words is "one million, eight hundred nineteen thousand, three hundred forty-two".