1105988 has 12 divisors (see below), whose sum is σ = 2084460. Its totient is φ = 510432.

The previous prime is 1105963. The next prime is 1105997. The reversal of 1105988 is 8895011.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 386884 + 719104 = 622^2 + 848^2 .

It is a super-2 number, since 2×1105988² = 2446418912288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10583 + ... + 10686.

It is an arithmetic number, because the mean of its divisors is an integer number (173705).

2^1105988 is an apocalyptic number.

It is an amenable number.

1105988 is a deficient number, since it is larger than the sum of its proper divisors (978472).

1105988 is a wasteful number, since it uses less digits than its factorization.

1105988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21286 (or 21284 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 1105988 is about 1051.6596407584. The cubic root of 1105988 is about 103.4149846030.

The spelling of 1105988 in words is "one million, one hundred five thousand, nine hundred eighty-eight".