1110020 has 12 divisors (see below), whose sum is σ = 2331084. Its totient is φ = 444000.

The previous prime is 1110019. The next prime is 1110023. The reversal of 1110020 is 200111.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 669124 + 440896 = 818^2 + 664^2 .

It is a Harshad number since it is a multiple of its sum of digits (5).

It is a junction number, because it is equal to n+sod(n) for n = 1109986 and 1110013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1110023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27731 + ... + 27770.

It is an arithmetic number, because the mean of its divisors is an integer number (194257).

2^1110020 is an apocalyptic number.

1110020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1110020 is an abundant number, since it is smaller than the sum of its proper divisors (1221064).

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

1110020 is a wasteful number, since it uses less digits than its factorization.

1110020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55510 (or 55508 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 5.

The square root of 1110020 is about 1053.5748668225. The cubic root of 1110020 is about 103.5405024023.

Adding to 1110020 its reverse (200111), we get a palindrome (1310131).

Subtracting from 1110020 its reverse (200111), we obtain a palindrome (909909).

The spelling of 1110020 in words is "one million, one hundred ten thousand, twenty".