1100970 has 48 divisors (see below), whose sum is σ = 3085992. Its totient is φ = 270720.

The previous prime is 1100947. The next prime is 1100977. The reversal of 1100970 is 790011.

It can be written as a sum of positive squares in 4 ways, for example, as 751689 + 349281 = 867^2 + 591^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1100977) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 700 + ... + 1640.

2^1100970 is an apocalyptic number.

1100970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1100970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1542996).

1100970 is an abundant number, since it is smaller than the sum of its proper divisors (1985022).

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

1100970 is a wasteful number, since it uses less digits than its factorization.

1100970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967 (or 964 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 18.

The square root of 1100970 is about 1049.2711756262. The cubic root of 1100970 is about 103.2583454102.

Adding to 1100970 its reverse (790011), we get a palindrome (1890981).

The spelling of 1100970 in words is "one million, one hundred thousand, nine hundred seventy".