2643073226 has 4 divisors (see below), whose sum is σ = 3964609842. Its totient is φ = 1321536612.

The previous prime is 2643073201. The next prime is 2643073229. The reversal of 2643073226 is 6223703462.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 2223028201 + 420045025 = 47149^2 + 20495^2 .

It is not an unprimeable number, because it can be changed into a prime (2643073229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660768305 + ... + 660768308.

Almost surely, 2^2643073226 is an apocalyptic number.

2643073226 is a deficient number, since it is larger than the sum of its proper divisors (1321536616).

2643073226 is a wasteful number, since it uses less digits than its factorization.

2643073226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321536615.

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 2643073226 is about 51410.8279061911. The cubic root of 2643073226 is about 1382.6207332973.

Adding to 2643073226 its reverse (6223703462), we get a palindrome (8866776688).

The spelling of 2643073226 in words is "two billion, six hundred forty-three million, seventy-three thousand, two hundred twenty-six".