1080890889 has 16 divisors (see below), whose sum is σ = 1643346432. Its totient is φ = 626035968.

The previous prime is 1080890873. The next prime is 1080890891. The reversal of 1080890889 is 9880980801.

It is not a de Polignac number, because 1080890889 - 2⁴ = 1080890873 is a prime.

It is a super-2 number, since 2×1080890889² = 2336650227846420642, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1080890809) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 814489 + ... + 815814.

It is an arithmetic number, because the mean of its divisors is an integer number (102709152).

Almost surely, 2^1080890889 is an apocalyptic number.

It is an amenable number.

1080890889 is a deficient number, since it is larger than the sum of its proper divisors (562455543).

1080890889 is a wasteful number, since it uses less digits than its factorization.

1080890889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1630336.

The product of its (nonzero) digits is 331776, while the sum is 51.

The square root of 1080890889 is about 32876.9051006934. The cubic root of 1080890889 is about 1026.2676013524.

The spelling of 1080890889 in words is "one billion, eighty million, eight hundred ninety thousand, eight hundred eighty-nine".