1003640112 has 80 divisors (see below), whose sum is σ = 2897136000. Its totient is φ = 332652096.

The previous prime is 1003640111. The next prime is 1003640117. The reversal of 1003640112 is 2110463001.

It is a happy number.

1003640112 is a `hidden beast` number, since 10 + 0 + 3 + 640 + 1 + 12 = 666.

1003640112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (1003640111) 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, 70839 + ... + 83817.

It is an arithmetic number, because the mean of its divisors is an integer number (36214200).

Almost surely, 2^1003640112 is an apocalyptic number.

1003640112 is a gapful number since it is divisible by the number (12) 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 1003640112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1448568000).

1003640112 is an abundant number, since it is smaller than the sum of its proper divisors (1893495888).

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

1003640112 is a wasteful number, since it uses less digits than its factorization.

1003640112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13175 (or 13163 counting only the distinct ones).

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

The square root of 1003640112 is about 31680.2795442212. The cubic root of 1003640112 is about 1001.2119013684.

The spelling of 1003640112 in words is "one billion, three million, six hundred forty thousand, one hundred twelve".