1820148 has 24 divisors (see below), whose sum is σ = 4633440. Its totient is φ = 551520.

The previous prime is 1820129. The next prime is 1820153. The reversal of 1820148 is 8410281.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6763 + ... + 7026.

It is an arithmetic number, because the mean of its divisors is an integer number (193060).

2^1820148 is an apocalyptic number.

It is an amenable number.

1820148 is an abundant number, since it is smaller than the sum of its proper divisors (2813292).

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

1820148 is a wasteful number, since it uses less digits than its factorization.

1820148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13807 (or 13805 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 24.

The square root of 1820148 is about 1349.1286076576. The cubic root of 1820148 is about 122.0962243633.

The spelling of 1820148 in words is "one million, eight hundred twenty thousand, one hundred forty-eight".