1828845840 has 40 divisors (see below), whose sum is σ = 5669422848. Its totient is φ = 487692160.

The previous prime is 1828845827. The next prime is 1828845881. The reversal of 1828845840 is 485488281.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1828845840.

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, 3809856 + ... + 3810335.

Almost surely, 2^1828845840 is an apocalyptic number.

1828845840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1828845840 is an abundant number, since it is smaller than the sum of its proper divisors (3840577008).

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

1828845840 is a wasteful number, since it uses less digits than its factorization.

1828845840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7620207 (or 7620201 counting only the distinct ones).

The product of its (nonzero) digits is 655360, while the sum is 48.

The square root of 1828845840 is about 42765.0071904589. The cubic root of 1828845840 is about 1222.9040020371.

The spelling of 1828845840 in words is "one billion, eight hundred twenty-eight million, eight hundred forty-five thousand, eight hundred forty".