1089489810 has 32 divisors (see below), whose sum is σ = 2622699072. Its totient is φ = 289650240.

The previous prime is 1089489809. The next prime is 1089489833. The reversal of 1089489810 is 189849801.

It is a super-2 number, since 2×1089489810² = 2373976092187672200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1089489810.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44929 + ... + 64788.

It is an arithmetic number, because the mean of its divisors is an integer number (81959346).

Almost surely, 2^1089489810 is an apocalyptic number.

1089489810 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1089489810 is an abundant number, since it is smaller than the sum of its proper divisors (1533209262).

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

1089489810 is a wasteful number, since it uses less digits than its factorization.

1089489810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110058.

The product of its (nonzero) digits is 165888, while the sum is 48.

The square root of 1089489810 is about 33007.4205293295. The cubic root of 1089489810 is about 1028.9818732575.

The spelling of 1089489810 in words is "one billion, eighty-nine million, four hundred eighty-nine thousand, eight hundred ten".