2630722331 has 4 divisors (see below), whose sum is σ = 2634827064. Its totient is φ = 2626617600.

The previous prime is 2630722309. The next prime is 2630722373. The reversal of 2630722331 is 1332270362.

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 2630722331 - 2²² = 2626528027 is a prime.

It is a super-2 number, since 2×2630722331² = 13841399965644147122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2630722294 and 2630722303.

It is not an unprimeable number, because it can be changed into a prime (2630722531) 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, 2051405 + ... + 2052686.

It is an arithmetic number, because the mean of its divisors is an integer number (658706766).

Almost surely, 2^2630722331 is an apocalyptic number.

2630722331 is a deficient number, since it is larger than the sum of its proper divisors (4104733).

2630722331 is an equidigital number, since it uses as much as digits as its factorization.

2630722331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4104732.

The product of its (nonzero) digits is 9072, while the sum is 29.

The square root of 2630722331 is about 51290.5676611207. The cubic root of 2630722331 is about 1380.4637402109.

Adding to 2630722331 its reverse (1332270362), we get a palindrome (3962992693).

The spelling of 2630722331 in words is "two billion, six hundred thirty million, seven hundred twenty-two thousand, three hundred thirty-one".