1102080040 has 72 divisors (see below), whose sum is σ = 2582401770. Its totient is φ = 423279360.

The previous prime is 1102080019. The next prime is 1102080043. The reversal of 1102080040 is 400802011.

It is a happy number.

It can be written as a sum of positive squares in 9 ways, for example, as 118504996 + 983575044 = 10886^2 + 31362^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1102079996 and 1102080023.

It is not an unprimeable number, because it can be changed into a prime (1102080043) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 6088750 + ... + 6088930.

Almost surely, 2^1102080040 is an apocalyptic number.

1102080040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1102080040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1291200885).

1102080040 is an abundant number, since it is smaller than the sum of its proper divisors (1480321730).

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

1102080040 is an equidigital number, since it uses as much as digits as its factorization.

1102080040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1102080040 is about 33197.5908764476. The cubic root of 1102080040 is about 1032.9303675621.

Adding to 1102080040 its reverse (400802011), we get a palindrome (1502882051).

The spelling of 1102080040 in words is "one billion, one hundred two million, eighty thousand, forty".