2644506226 has 4 divisors (see below), whose sum is σ = 3966759342. Its totient is φ = 1322253112.

The previous prime is 2644506209. The next prime is 2644506229. The reversal of 2644506226 is 6226054462.

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., 2120142025 + 524364201 = 46045^2 + 22899^2 .

It is not an unprimeable number, because it can be changed into a prime (2644506229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661126555 + ... + 661126558.

Almost surely, 2^2644506226 is an apocalyptic number.

2644506226 is a deficient number, since it is larger than the sum of its proper divisors (1322253116).

2644506226 is a wasteful number, since it uses less digits than its factorization.

2644506226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322253115.

The product of its (nonzero) digits is 138240, while the sum is 37.

The square root of 2644506226 is about 51424.7627704786. The cubic root of 2644506226 is about 1382.8705608505.

The spelling of 2644506226 in words is "two billion, six hundred forty-four million, five hundred six thousand, two hundred twenty-six".