1890048 has 72 divisors (see below), whose sum is σ = 5298048. Its totient is φ = 596992.

The previous prime is 1890041. The next prime is 1890079. The reversal of 1890048 is 8400981.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1889997 and 1890024.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1890041) 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, 17611 + ... + 17717.

It is an arithmetic number, because the mean of its divisors is an integer number (73584).

2^1890048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1890048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2649024).

1890048 is an abundant number, since it is smaller than the sum of its proper divisors (3408000).

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

1890048 is a wasteful number, since it uses less digits than its factorization.

1890048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 1890048 is about 1374.7901658071. The cubic root of 1890048 is about 123.6396056610.

The spelling of 1890048 in words is "one million, eight hundred ninety thousand, forty-eight".