1011843940 has 24 divisors (see below), whose sum is σ = 2125972800. Its totient is φ = 404527968.

The previous prime is 1011843919. The next prime is 1011843949. The reversal of 1011843940 is 493481101.

1011843940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (1011843949) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29929 + ... + 54031.

It is an arithmetic number, because the mean of its divisors is an integer number (88582200).

Almost surely, 2^1011843940 is an apocalyptic number.

1011843940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011843940 is an abundant number, since it is smaller than the sum of its proper divisors (1114128860).

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

1011843940 is a wasteful number, since it uses less digits than its factorization.

1011843940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26211 (or 26209 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1011843940 is about 31809.4944945688. The cubic root of 1011843940 is about 1003.9324952100.

The spelling of 1011843940 in words is "one billion, eleven million, eight hundred forty-three thousand, nine hundred forty".