1626220012 has 12 divisors (see below), whose sum is σ = 2861785080. Its totient is φ = 808567136.

The previous prime is 1626219971. The next prime is 1626220039. The reversal of 1626220012 is 2100226261.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1134913 + ... + 1136344.

It is an arithmetic number, because the mean of its divisors is an integer number (238482090).

Almost surely, 2^1626220012 is an apocalyptic number.

It is an amenable number.

1626220012 is a deficient number, since it is larger than the sum of its proper divisors (1235565068).

1626220012 is a wasteful number, since it uses less digits than its factorization.

1626220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271440 (or 2271438 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1626220012 is about 40326.4182887595. The cubic root of 1626220012 is about 1175.9614914427.

Adding to 1626220012 its reverse (2100226261), we get a palindrome (3726446273).

The spelling of 1626220012 in words is "one billion, six hundred twenty-six million, two hundred twenty thousand, twelve".