2604615440 has 40 divisors (see below), whose sum is σ = 6920836800. Its totient is φ = 893010816.

The previous prime is 2604615401. The next prime is 2604615449. The reversal of 2604615440 is 445164062.

2604615440 is digitally balanced in base 2, 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 (40).

It is a junction number, because it is equal to n+sod(n) for n = 2604615397 and 2604615406.

It is not an unprimeable number, because it can be changed into a prime (2604615449) 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, 2324990 + ... + 2326109.

It is an arithmetic number, because the mean of its divisors is an integer number (173020920).

Almost surely, 2^2604615440 is an apocalyptic number.

2604615440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2604615440 is an abundant number, since it is smaller than the sum of its proper divisors (4316221360).

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

2604615440 is a wasteful number, since it uses less digits than its factorization.

2604615440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4651119 (or 4651113 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 2604615440 is about 51035.4331812712. The cubic root of 2604615440 is about 1375.8820460680.

The spelling of 2604615440 in words is "two billion, six hundred four million, six hundred fifteen thousand, four hundred forty".