2103421440 has 160 divisors (see below), whose sum is σ = 6751014336. Its totient is φ = 558694400.

The previous prime is 2103421433. The next prime is 2103421451. The reversal of 2103421440 is 441243012.

2103421440 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (160).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3079339 + ... + 3080021.

Almost surely, 2^2103421440 is an apocalyptic number.

2103421440 is a gapful number since it is divisible by the number (20) 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 2103421440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3375507168).

2103421440 is an abundant number, since it is smaller than the sum of its proper divisors (4647592896).

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

2103421440 is an equidigital number, since it uses as much as digits as its factorization.

2103421440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110 (or 1094 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2103421440 is about 45863.0727274133. The cubic root of 2103421440 is about 1281.2742518828.

Adding to 2103421440 its reverse (441243012), we get a palindrome (2544664452).

The spelling of 2103421440 in words is "two billion, one hundred three million, four hundred twenty-one thousand, four hundred forty".