2103020040 has 64 divisors (see below), whose sum is σ = 6882615360. Its totient is φ = 509822720.

The previous prime is 2103020027. The next prime is 2103020041. The reversal of 2103020040 is 400203012.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 2103019998 and 2103020025.

It is not an unprimeable number, because it can be changed into a prime (2103020041) 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, 795279 + ... + 797918.

It is an arithmetic number, because the mean of its divisors is an integer number (107540865).

Almost surely, 2^2103020040 is an apocalyptic number.

2103020040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2103020040 is an abundant number, since it is smaller than the sum of its proper divisors (4779595320).

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

2103020040 is a wasteful number, since it uses less digits than its factorization.

2103020040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593222 (or 1593218 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 2103020040 is about 45858.6964489834. The cubic root of 2103020040 is about 1281.1927440129.

Adding to 2103020040 its reverse (400203012), we get a palindrome (2503223052).

The spelling of 2103020040 in words is "two billion, one hundred three million, twenty thousand, forty".