1799449 has 4 divisors (see below), whose sum is σ = 1843380. Its totient is φ = 1755520.

The previous prime is 1799423. The next prime is 1799453. The reversal of 1799449 is 9449971.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9449971 = 59 ⋅160169.

It can be written as a sum of positive squares in 2 ways, for example, as 883600 + 915849 = 940^2 + 957^2 .

It is a cyclic number.

It is not a de Polignac number, because 1799449 - 2⁵ = 1799417 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1799549) 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, 21904 + ... + 21985.

It is an arithmetic number, because the mean of its divisors is an integer number (460845).

2^1799449 is an apocalyptic number.

It is an amenable number.

1799449 is a deficient number, since it is larger than the sum of its proper divisors (43931).

1799449 is an equidigital number, since it uses as much as digits as its factorization.

1799449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43930.

The product of its digits is 81648, while the sum is 43.

The square root of 1799449 is about 1341.4354252069. The cubic root of 1799449 is about 121.6316264473.

The spelling of 1799449 in words is "one million, seven hundred ninety-nine thousand, four hundred forty-nine".