1828949 has 4 divisors (see below), whose sum is σ = 1836780. Its totient is φ = 1821120.

The previous prime is 1828933. The next prime is 1828973. The reversal of 1828949 is 9498281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9498281 = 13 ⋅730637.

It can be written as a sum of positive squares in 2 ways, for example, as 552049 + 1276900 = 743^2 + 1130^2 .

It is a cyclic number.

It is not a de Polignac number, because 1828949 - 2⁴ = 1828933 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 (1828999) 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, 3554 + ... + 4035.

It is an arithmetic number, because the mean of its divisors is an integer number (459195).

2^1828949 is an apocalyptic number.

It is an amenable number.

1828949 is a deficient number, since it is larger than the sum of its proper divisors (7831).

1828949 is an equidigital number, since it uses as much as digits as its factorization.

1828949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7830.

The product of its digits is 41472, while the sum is 41.

The square root of 1828949 is about 1352.3864092781. The cubic root of 1828949 is about 122.2926995119.

The spelling of 1828949 in words is "one million, eight hundred twenty-eight thousand, nine hundred forty-nine".