2630220931 has 4 divisors (see below), whose sum is σ = 2832545632. Its totient is φ = 2427896232.

The previous prime is 2630220899. The next prime is 2630220991. The reversal of 2630220931 is 1390220362.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2630220931 - 2⁵ = 2630220899 is a prime.

It is a super-2 number, since 2×2630220931² = 13836124291741013522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2630220931.

It is not an unprimeable number, because it can be changed into a prime (2630220991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101162331 + ... + 101162356.

It is an arithmetic number, because the mean of its divisors is an integer number (708136408).

Almost surely, 2^2630220931 is an apocalyptic number.

2630220931 is a deficient number, since it is larger than the sum of its proper divisors (202324701).

2630220931 is a wasteful number, since it uses less digits than its factorization.

2630220931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202324700.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 2630220931 is about 51285.6795899206. The cubic root of 2630220931 is about 1380.3760319175.

The spelling of 2630220931 in words is "two billion, six hundred thirty million, two hundred twenty thousand, nine hundred thirty-one".