881021124 has 135 divisors (see below), whose sum is σ = 2472095703. Its totient is φ = 273549312.

The previous prime is 881021093. The next prime is 881021137. The reversal of 881021124 is 421120188.

The square root of 881021124 is 29682.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 51581124 + 829440000 = 7182^2 + 28800^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 9082644 + ... + 9082740.

Almost surely, 2^881021124 is an apocalyptic number.

881021124 is the 29682-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 881021124

881021124 is an abundant number, since it is smaller than the sum of its proper divisors (1591074579).

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

881021124 is a wasteful number, since it uses less digits than its factorization.

881021124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 119 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The cubic root of 881021124 is about 958.6544822164.

Multiplying 881021124 by its product of nonzero digits (1024), we get a square (902165630976 = 949824²).

The spelling of 881021124 in words is "eight hundred eighty-one million, twenty-one thousand, one hundred twenty-four".