2640220627 has 16 divisors (see below), whose sum is σ = 2913805440. Its totient is φ = 2372385600.

The previous prime is 2640220619. The next prime is 2640220631. The reversal of 2640220627 is 7260220462.

It is a cyclic number.

It is not a de Polignac number, because 2640220627 - 2³ = 2640220619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2640220607) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 352552 + ... + 359962.

It is an arithmetic number, because the mean of its divisors is an integer number (182112840).

Almost surely, 2^2640220627 is an apocalyptic number.

2640220627 is a deficient number, since it is larger than the sum of its proper divisors (273584813).

2640220627 is a wasteful number, since it uses less digits than its factorization.

2640220627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7794.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 2640220627 is about 51383.0772433882. The cubic root of 2640220627 is about 1382.1231455850.

The spelling of 2640220627 in words is "two billion, six hundred forty million, two hundred twenty thousand, six hundred twenty-seven".