1226990908 has 24 divisors (see below), whose sum is σ = 2522625840. Its totient is φ = 514821120.

The previous prime is 1226990893. The next prime is 1226990981. The reversal of 1226990908 is 8090996221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071973 + ... + 1073116.

It is an arithmetic number, because the mean of its divisors is an integer number (105109410).

Almost surely, 2^1226990908 is an apocalyptic number.

It is an amenable number.

1226990908 is an abundant number, since it is smaller than the sum of its proper divisors (1295634932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1226990908 is a wasteful number, since it uses less digits than its factorization.

1226990908 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2145117 (or 2145115 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 46.

The square root of 1226990908 is about 35028.4299962188. The cubic root of 1226990908 is about 1070.5668257700.

The spelling of 1226990908 in words is "one billion, two hundred twenty-six million, nine hundred ninety thousand, nine hundred eight".