1426644668 has 24 divisors (see below), whose sum is σ = 2602392912. Its totient is φ = 683679744.

The previous prime is 1426644577. The next prime is 1426644671. The reversal of 1426644668 is 8664466241.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62021 + ... + 81852.

It is an arithmetic number, because the mean of its divisors is an integer number (108433038).

Almost surely, 2^1426644668 is an apocalyptic number.

It is an amenable number.

1426644668 is a deficient number, since it is larger than the sum of its proper divisors (1175748244).

1426644668 is a wasteful number, since it uses less digits than its factorization.

1426644668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143981 (or 143979 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 47.

The square root of 1426644668 is about 37770.9500542414. The cubic root of 1426644668 is about 1125.7413169668.

The spelling of 1426644668 in words is "one billion, four hundred twenty-six million, six hundred forty-four thousand, six hundred sixty-eight".