1899044 has 18 divisors (see below), whose sum is σ = 3866310. Its totient is φ = 813792.

The previous prime is 1899017. The next prime is 1899047. The reversal of 1899044 is 4409981.

It can be written as a sum of positive squares in only one way, i.e., 1658944 + 240100 = 1288^2 + 490^2 .

It is a super-2 number, since 2×1899044² = 7212736227872, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1898995 and 1899013.

It is not an unprimeable number, because it can be changed into a prime (1899047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4649 + ... + 5040.

It is an arithmetic number, because the mean of its divisors is an integer number (214795).

2^1899044 is an apocalyptic number.

1899044 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1899044 is an abundant number, since it is smaller than the sum of its proper divisors (1967266).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1899044 is a wasteful number, since it uses less digits than its factorization.

1899044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707 (or 9698 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1899044 is about 1378.0580539295. The cubic root of 1899044 is about 123.8354563975.

The spelling of 1899044 in words is "one million, eight hundred ninety-nine thousand, forty-four".