1100070 has 48 divisors (see below), whose sum is σ = 3032640. Its totient is φ = 275712.

The previous prime is 1100063. The next prime is 1100089. The reversal of 1100070 is 700011.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1171 + ... + 1889.

It is an arithmetic number, because the mean of its divisors is an integer number (63180).

2^1100070 is an apocalyptic number.

1100070 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 1100070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1516320).

1100070 is an abundant number, since it is smaller than the sum of its proper divisors (1932570).

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

1100070 is a wasteful number, since it uses less digits than its factorization.

1100070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749 (or 746 counting only the distinct ones).

The product of its (nonzero) digits is 7, while the sum is 9.

The square root of 1100070 is about 1048.8422188299. The cubic root of 1100070 is about 103.2302011843.

Adding to 1100070 its reverse (700011), we get a palindrome (1800081).

The spelling of 1100070 in words is "one million, one hundred thousand, seventy".