2279626642 has 4 divisors (see below), whose sum is σ = 3419439966. Its totient is φ = 1139813320.

The previous prime is 2279626621. The next prime is 2279626649. The reversal of 2279626642 is 2466269722.

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., 1297368361 + 982258281 = 36019^2 + 31341^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2279626592 and 2279626601.

It is not an unprimeable number, because it can be changed into a prime (2279626649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569906659 + ... + 569906662.

Almost surely, 2^2279626642 is an apocalyptic number.

2279626642 is a deficient number, since it is larger than the sum of its proper divisors (1139813324).

2279626642 is a wasteful number, since it uses less digits than its factorization.

2279626642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139813323.

The product of its digits is 870912, while the sum is 46.

The square root of 2279626642 is about 47745.4358237518. The cubic root of 2279626642 is about 1316.0970267027.

The spelling of 2279626642 in words is "two billion, two hundred seventy-nine million, six hundred twenty-six thousand, six hundred forty-two".