881490 has 16 divisors (see below), whose sum is σ = 2115648. Its totient is φ = 235056.

The previous prime is 881479. The next prime is 881509. The reversal of 881490 is 94188.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 29383 = 881490 / (8 + 8 + 1 + 4 + 9 + 0).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 881490.

It is an unprimeable number.

881490 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 14662 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (132228).

2⁸⁸¹⁴⁹⁰ is an apocalyptic number.

881490 is an abundant number, since it is smaller than the sum of its proper divisors (1234158).

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

881490 is a wasteful number, since it uses less digits than its factorization.

881490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29393.

The product of its (nonzero) digits is 2304, while the sum is 30.

The square root of 881490 is about 938.8769887477. The cubic root of 881490 is about 95.8824516113.

The spelling of 881490 in words is "eight hundred eighty-one thousand, four hundred ninety".