2403263520 has 480 divisors, whose sum is σ = 9879408000. Its totient is φ = 538804224.

The previous prime is 2403263509. The next prime is 2403263557. The reversal of 2403263520 is 253623042.

2403263520 is a `hidden beast` number, since 2 + 4 + 0 + 3 + 2 + 635 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (480).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 5352256 + ... + 5352704.

It is an arithmetic number, because the mean of its divisors is an integer number (20582100).

Almost surely, 2^2403263520 is an apocalyptic number.

2403263520 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 2403263520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4939704000).

2403263520 is an abundant number, since it is smaller than the sum of its proper divisors (7476144480).

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

2403263520 is a wasteful number, since it uses less digits than its factorization.

2403263520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 525 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 2403263520 is about 49023.0917017685. The cubic root of 2403263520 is about 1339.4724885847.

Adding to 2403263520 its reverse (253623042), we get a palindrome (2656886562).

The spelling of 2403263520 in words is "two billion, four hundred three million, two hundred sixty-three thousand, five hundred twenty".