881005944 has 64 divisors (see below), whose sum is σ = 2710794240. Its totient is φ = 232352640.

The previous prime is 881005933. The next prime is 881005963. The reversal of 881005944 is 449500188.

It is a super-2 number, since 2×881005944² = 1552342946726662272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 199512 + ... + 203879.

It is an arithmetic number, because the mean of its divisors is an integer number (42356160).

Almost surely, 2^881005944 is an apocalyptic number.

881005944 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

881005944 is an abundant number, since it is smaller than the sum of its proper divisors (1829788296).

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

881005944 is a wasteful number, since it uses less digits than its factorization.

881005944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403420 (or 403416 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 881005944 is about 29681.7442883669. The cubic root of 881005944 is about 958.6489763103.

The spelling of 881005944 in words is "eight hundred eighty-one million, five thousand, nine hundred forty-four".