1898148 has 48 divisors (see below), whose sum is σ = 5160960. Its totient is φ = 531744.

The previous prime is 1898131. The next prime is 1898153. The reversal of 1898148 is 8418981.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4765 + ... + 5147.

It is an arithmetic number, because the mean of its divisors is an integer number (107520).

2^1898148 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 1898148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2580480).

1898148 is an abundant number, since it is smaller than the sum of its proper divisors (3262812).

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

1898148 is a wasteful number, since it uses less digits than its factorization.

1898148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456 (or 454 counting only the distinct ones).

The product of its digits is 18432, while the sum is 39.

The square root of 1898148 is about 1377.7329204167. The cubic root of 1898148 is about 123.8159774695.

The spelling of 1898148 in words is "one million, eight hundred ninety-eight thousand, one hundred forty-eight".