880131990 has 64 divisors (see below), whose sum is σ = 2240996544. Its totient is φ = 220459008.

The previous prime is 880131911. The next prime is 880131997. The reversal of 880131990 is 99131088.

It is a happy number.

880131990 is a nontrivial binomial coefficient, being equal to C(41956, 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (880131997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 313272 + ... + 316068.

It is an arithmetic number, because the mean of its divisors is an integer number (35015571).

Almost surely, 2^880131990 is an apocalyptic number.

880131990 is the 41955-th triangular number and also the 20978-th hexagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 880131990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1120498272).

880131990 is an abundant number, since it is smaller than the sum of its proper divisors (1360864554).

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

880131990 is a wasteful number, since it uses less digits than its factorization.

880131990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3441.

The product of its (nonzero) digits is 15552, while the sum is 39.

The square root of 880131990 is about 29667.0185559655. The cubic root of 880131990 is about 958.3318795861.

It can be divided in two parts, 880 and 131990, that added together give a triangular number (132870 = T₅₁₅).

The spelling of 880131990 in words is "eight hundred eighty million, one hundred thirty-one thousand, nine hundred ninety".