1994819 has 8 divisors (see below), whose sum is σ = 2075520. Its totient is φ = 1915200.

The previous prime is 1994807. The next prime is 1994827. The reversal of 1994819 is 9184991.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1994819 is a prime.

It is a super-2 number, since 2×1994819² = 7958605685522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1994869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6959 + ... + 7239.

It is an arithmetic number, because the mean of its divisors is an integer number (259440).

2^1994819 is an apocalyptic number.

1994819 is a deficient number, since it is larger than the sum of its proper divisors (80701).

1994819 is a wasteful number, since it uses less digits than its factorization.

1994819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 541.

The product of its digits is 23328, while the sum is 41.

The square root of 1994819 is about 1412.3806144237. The cubic root of 1994819 is about 125.8832167276.

The spelling of 1994819 in words is "one million, nine hundred ninety-four thousand, eight hundred nineteen".