881745920 has 224 divisors, whose sum is σ = 2453518080. Its totient is φ = 300810240.

The previous prime is 881745913. The next prime is 881745923. The reversal of 881745920 is 29547188.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (881745923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8560589 + ... + 8560691.

Almost surely, 2^881745920 is an apocalyptic number.

881745920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881745920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1226759040).

881745920 is an abundant number, since it is smaller than the sum of its proper divisors (1571772160).

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

881745920 is a wasteful number, since it uses less digits than its factorization.

881745920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 140 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 44.

The square root of 881745920 is about 29694.2068424129. The cubic root of 881745920 is about 958.9172978902.

The spelling of 881745920 in words is "eight hundred eighty-one million, seven hundred forty-five thousand, nine hundred twenty".