1890574448 has 120 divisors (see below), whose sum is σ = 4383121248. Its totient is φ = 787358208.

The previous prime is 1890574397. The next prime is 1890574453. The reversal of 1890574448 is 8444750981.

It is a junction number, because it is equal to n+sod(n) for n = 1890574396 and 1890574405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7188365 + ... + 7188627.

Almost surely, 2^1890574448 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 1890574448, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2191560624).

1890574448 is an abundant number, since it is smaller than the sum of its proper divisors (2492546800).

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

1890574448 is a wasteful number, since it uses less digits than its factorization.

1890574448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 511 (or 498 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 50.

The square root of 1890574448 is about 43480.7365163011. The cubic root of 1890574448 is about 1236.5108399046.

The spelling of 1890574448 in words is "one billion, eight hundred ninety million, five hundred seventy-four thousand, four hundred forty-eight".