1994269 has 4 divisors (see below), whose sum is σ = 2004796. Its totient is φ = 1983744.

The previous prime is 1994227. The next prime is 1994299. The reversal of 1994269 is 9624991.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9624991 = 43 ⋅223837.

It can be written as a sum of positive squares in 2 ways, for example, as 974169 + 1020100 = 987^2 + 1010^2 .

It is a cyclic number.

It is not a de Polignac number, because 1994269 - 2⁹ = 1993757 is a prime.

It is a super-2 number, since 2×1994269² = 7954217688722, which contains 22 as substring.

It is a Duffinian number.

1994269 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994299) 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, 4974 + ... + 5359.

It is an arithmetic number, because the mean of its divisors is an integer number (501199).

2^1994269 is an apocalyptic number.

It is an amenable number.

1994269 is a deficient number, since it is larger than the sum of its proper divisors (10527).

1994269 is a wasteful number, since it uses less digits than its factorization.

1994269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10526.

The product of its digits is 34992, while the sum is 40.

The square root of 1994269 is about 1412.1858942788. The cubic root of 1994269 is about 125.8716463991.

The spelling of 1994269 in words is "one million, nine hundred ninety-four thousand, two hundred sixty-nine".