1226013906 has 32 divisors (see below), whose sum is σ = 2664889920. Its totient is φ = 373771584.

The previous prime is 1226013883. The next prime is 1226013961. The reversal of 1226013906 is 6093106221.

It is a super-2 number, since 2×1226013906² = 3006220195410753672, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63600 + ... + 80603.

It is an arithmetic number, because the mean of its divisors is an integer number (83277810).

Almost surely, 2^1226013906 is an apocalyptic number.

1226013906 is an abundant number, since it is smaller than the sum of its proper divisors (1438876014).

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

1226013906 is a wasteful number, since it uses less digits than its factorization.

1226013906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144330.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 1226013906 is about 35014.4813755680. The cubic root of 1226013906 is about 1070.2826009888.

The spelling of 1226013906 in words is "one billion, two hundred twenty-six million, thirteen thousand, nine hundred six".