1103210640 has 480 divisors, whose sum is σ = 4575707136. Its totient is φ = 232657920.

The previous prime is 1103210639. The next prime is 1103210683. The reversal of 1103210640 is 460123011.

It is a happy number.

1103210640 is a `hidden beast` number, since 1 + 1 + 0 + 3 + 21 + 0 + 640 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3593367 + ... + 3593673.

Almost surely, 2^1103210640 is an apocalyptic number.

1103210640 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 1103210640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2287853568).

1103210640 is an abundant number, since it is smaller than the sum of its proper divisors (3472496496).

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

1103210640 is a wasteful number, since it uses less digits than its factorization.

1103210640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387 (or 378 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1103210640 is about 33214.6148555120. The cubic root of 1103210640 is about 1033.2834671277.

Adding to 1103210640 its reverse (460123011), we get a palindrome (1563333651).

The spelling of 1103210640 in words is "one billion, one hundred three million, two hundred ten thousand, six hundred forty".