881640330 has 16 divisors (see below), whose sum is σ = 2115936864. Its totient is φ = 235104080.

The previous prime is 881640323. The next prime is 881640379. The reversal of 881640330 is 33046188.

It is a junction number, because it is equal to n+sod(n) for n = 881640291 and 881640300.

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 7 ways as a sum of consecutive naturals, for example, 14693976 + ... + 14694035.

It is an arithmetic number, because the mean of its divisors is an integer number (132246054).

Almost surely, 2^881640330 is an apocalyptic number.

881640330 is an abundant number, since it is smaller than the sum of its proper divisors (1234296534).

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

881640330 is a wasteful number, since it uses less digits than its factorization.

881640330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29388021.

The product of its (nonzero) digits is 13824, while the sum is 33.

The square root of 881640330 is about 29692.4288329534. The cubic root of 881640330 is about 958.8790192444.

The spelling of 881640330 in words is "eight hundred eighty-one million, six hundred forty thousand, three hundred thirty".