2638222541 has 4 divisors (see below), whose sum is σ = 2638336800. Its totient is φ = 2638108284.

The previous prime is 2638222519. The next prime is 2638222547. The reversal of 2638222541 is 1452228362.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2638222541 - 2¹⁴ = 2638206157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2638222547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8951 + ... + 73188.

It is an arithmetic number, because the mean of its divisors is an integer number (659584200).

Almost surely, 2^2638222541 is an apocalyptic number.

It is an amenable number.

2638222541 is a deficient number, since it is larger than the sum of its proper divisors (114259).

2638222541 is an equidigital number, since it uses as much as digits as its factorization.

2638222541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114258.

The product of its digits is 46080, while the sum is 35.

The square root of 2638222541 is about 51363.6305278355. The cubic root of 2638222541 is about 1381.7743997490.

The spelling of 2638222541 in words is "two billion, six hundred thirty-eight million, two hundred twenty-two thousand, five hundred forty-one".