2463997440 has 80 divisors (see below), whose sum is σ = 7877116368. Its totient is φ = 657063936.

The previous prime is 2463997409. The next prime is 2463997447. The reversal of 2463997440 is 447993642.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2463997440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2463997447) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152737 + ... + 168096.

Almost surely, 2^2463997440 is an apocalyptic number.

2463997440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2463997440 is an abundant number, since it is smaller than the sum of its proper divisors (5413118928).

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

2463997440 is an equidigital number, since it uses as much as digits as its factorization.

2463997440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320859 (or 320843 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The square root of 2463997440 is about 49638.6687976219. The cubic root of 2463997440 is about 1350.6622155766.

The spelling of 2463997440 in words is "two billion, four hundred sixty-three million, nine hundred ninety-seven thousand, four hundred forty".