2630440643 has 8 divisors (see below), whose sum is σ = 2680716480. Its totient is φ = 2580589440.

The previous prime is 2630440559. The next prime is 2630440661. The reversal of 2630440643 is 3460440362.

2630440643 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2630440643 - 2²⁸ = 2362005187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2630440343) 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, 93638 + ... + 118443.

It is an arithmetic number, because the mean of its divisors is an integer number (335089560).

Almost surely, 2^2630440643 is an apocalyptic number.

2630440643 is a deficient number, since it is larger than the sum of its proper divisors (50275837).

2630440643 is a wasteful number, since it uses less digits than its factorization.

2630440643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212317.

The product of its (nonzero) digits is 41472, while the sum is 32.

The square root of 2630440643 is about 51287.8215856357. The cubic root of 2630440643 is about 1380.4144668046.

The spelling of 2630440643 in words is "two billion, six hundred thirty million, four hundred forty thousand, six hundred forty-three".