1898449 has 8 divisors (see below), whose sum is σ = 2197760. Its totient is φ = 1606176.

The previous prime is 1898447. The next prime is 1898467. The reversal of 1898449 is 9448981.

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

It is a cyclic number.

It is not a de Polignac number, because 1898449 - 2¹ = 1898447 is a prime.

It is a Duffinian number.

1898449 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1898447) 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, 1164 + ... + 2269.

It is an arithmetic number, because the mean of its divisors is an integer number (274720).

2^1898449 is an apocalyptic number.

It is an amenable number.

1898449 is a deficient number, since it is larger than the sum of its proper divisors (299311).

1898449 is an equidigital number, since it uses as much as digits as its factorization.

1898449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3519.

The product of its digits is 82944, while the sum is 43.

The square root of 1898449 is about 1377.8421535140. The cubic root of 1898449 is about 123.8225218555.

The spelling of 1898449 in words is "one million, eight hundred ninety-eight thousand, four hundred forty-nine".