1898531448 has 32 divisors (see below), whose sum is σ = 5177813760. Its totient is φ = 575312480.

The previous prime is 1898531417. The next prime is 1898531461. The reversal of 1898531448 is 8441358981.

It is a self number, because there is not a number n which added to its sum of digits gives 1898531448.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3595440 + ... + 3595967.

It is an arithmetic number, because the mean of its divisors is an integer number (161806680).

Almost surely, 2^1898531448 is an apocalyptic number.

It is an amenable number.

1898531448 is an abundant number, since it is smaller than the sum of its proper divisors (3279282312).

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

1898531448 is a wasteful number, since it uses less digits than its factorization.

1898531448 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7191427 (or 7191423 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 51.

The square root of 1898531448 is about 43572.1407323533. The cubic root of 1898531448 is about 1238.2431433129.

The spelling of 1898531448 in words is "one billion, eight hundred ninety-eight million, five hundred thirty-one thousand, four hundred forty-eight".