2603321240 has 128 divisors (see below), whose sum is σ = 6744124800. Its totient is φ = 896839680.

The previous prime is 2603321219. The next prime is 2603321243. The reversal of 2603321240 is 421233062.

2603321240 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 (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2603321243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 487706 + ... + 493014.

It is an arithmetic number, because the mean of its divisors is an integer number (52688475).

Almost surely, 2^2603321240 is an apocalyptic number.

2603321240 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 2603321240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3372062400).

2603321240 is an abundant number, since it is smaller than the sum of its proper divisors (4140803560).

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

2603321240 is a wasteful number, since it uses less digits than its factorization.

2603321240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5397 (or 5393 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2603321240 is about 51022.7521797874. The cubic root of 2603321240 is about 1375.6541222668.

The spelling of 2603321240 in words is "two billion, six hundred three million, three hundred twenty-one thousand, two hundred forty".