1828944640 has 36 divisors (see below), whose sum is σ = 4380897024. Its totient is φ = 731577344.

The previous prime is 1828944581. The next prime is 1828944641. The reversal of 1828944640 is 464498281.

It is not an unprimeable number, because it can be changed into a prime (1828944641) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 713152 + ... + 715711.

It is an arithmetic number, because the mean of its divisors is an integer number (121691584).

Almost surely, 2^1828944640 is an apocalyptic number.

1828944640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1828944640 is an abundant number, since it is smaller than the sum of its proper divisors (2551952384).

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

1828944640 is an equidigital number, since it uses as much as digits as its factorization.

1828944640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428884 (or 1428870 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 46.

The square root of 1828944640 is about 42766.1623249036. The cubic root of 1828944640 is about 1222.9260233464.

The spelling of 1828944640 in words is "one billion, eight hundred twenty-eight million, nine hundred forty-four thousand, six hundred forty".