1868049 has 16 divisors (see below), whose sum is σ = 2833600. Its totient is φ = 1215648.

The previous prime is 1868039. The next prime is 1868051. The reversal of 1868049 is 9408681.

It is a happy number.

It is not a de Polignac number, because 1868049 - 2⁴ = 1868033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1868039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357 + ... + 1965.

It is an arithmetic number, because the mean of its divisors is an integer number (177100).

2^1868049 is an apocalyptic number.

It is an amenable number.

1868049 is a deficient number, since it is larger than the sum of its proper divisors (965551).

1868049 is a wasteful number, since it uses less digits than its factorization.

1868049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1661 (or 1655 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The square root of 1868049 is about 1366.7658907070. The cubic root of 1868049 is about 123.1580360045.

The spelling of 1868049 in words is "one million, eight hundred sixty-eight thousand, forty-nine".