2403315840 has 256 divisors, whose sum is σ = 8394192000. Its totient is φ = 582156288.

The previous prime is 2403315781. The next prime is 2403315851. The reversal of 2403315840 is 485133042.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2403315798 and 2403315807.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 945291 + ... + 947829.

Almost surely, 2^2403315840 is an apocalyptic number.

2403315840 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 2403315840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4197096000).

2403315840 is an abundant number, since it is smaller than the sum of its proper divisors (5990876160).

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

2403315840 is a wasteful number, since it uses less digits than its factorization.

2403315840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2607 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2403315840 is about 49023.6253249390. The cubic root of 2403315840 is about 1339.4822087966.

Adding to 2403315840 its reverse (485133042), we get a palindrome (2888448882).

The spelling of 2403315840 in words is "two billion, four hundred three million, three hundred fifteen thousand, eight hundred forty".