1102040240 has 80 divisors (see below), whose sum is σ = 2936246592. Its totient is φ = 376814592.

The previous prime is 1102040237. The next prime is 1102040243. The reversal of 1102040240 is 420402011.

It is an interprime number because it is at equal distance from previous prime (1102040237) and next prime (1102040243).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is not an unprimeable number, because it can be changed into a prime (1102040243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219842 + ... + 224798.

Almost surely, 2^1102040240 is an apocalyptic number.

1102040240 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 1102040240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1468123296).

1102040240 is an abundant number, since it is smaller than the sum of its proper divisors (1834206352).

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

1102040240 is a wasteful number, since it uses less digits than its factorization.

1102040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5374 (or 5368 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1102040240 is about 33196.9914299474. The cubic root of 1102040240 is about 1032.9179331586.

Adding to 1102040240 its reverse (420402011), we get a palindrome (1522442251).

The spelling of 1102040240 in words is "one billion, one hundred two million, forty thousand, two hundred forty".