1828861948 has 24 divisors (see below), whose sum is σ = 3370565520. Its totient is φ = 865889280.

The previous prime is 1828861943. The next prime is 1828861961. The reversal of 1828861948 is 8491688281.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1828861943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 204858 + ... + 213598.

It is an arithmetic number, because the mean of its divisors is an integer number (140440230).

Almost surely, 2^1828861948 is an apocalyptic number.

It is an amenable number.

1828861948 is a deficient number, since it is larger than the sum of its proper divisors (1541703572).

1828861948 is a wasteful number, since it uses less digits than its factorization.

1828861948 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11517 (or 11515 counting only the distinct ones).

The product of its digits is 1769472, while the sum is 55.

The square root of 1828861948 is about 42765.1955215921. The cubic root of 1828861948 is about 1222.9075923670.

The spelling of 1828861948 in words is "one billion, eight hundred twenty-eight million, eight hundred sixty-one thousand, nine hundred forty-eight".