1941840864 has 60 divisors (see below), whose sum is σ = 5710907664. Its totient is φ = 647279424.

The previous prime is 1941840853. The next prime is 1941840881. The reversal of 1941840864 is 4680481491.

It is a super-2 number, since 2×1941840864² = 7541491882200532992, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 9 ways as a sum of consecutive naturals, for example, 371992 + ... + 377175.

Almost surely, 2^1941840864 is an apocalyptic number.

It is an amenable number.

1941840864 is an abundant number, since it is smaller than the sum of its proper divisors (3769066800).

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

1941840864 is an equidigital number, since it uses as much as digits as its factorization.

1941840864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749189 (or 749172 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 45.

The square root of 1941840864 is about 44066.3234681542. The cubic root of 1941840864 is about 1247.5880667089.

The spelling of 1941840864 in words is "one billion, nine hundred forty-one million, eight hundred forty thousand, eight hundred sixty-four".