1226819630 has 16 divisors (see below), whose sum is σ = 2262136464. Its totient is φ = 478758720.

The previous prime is 1226819623. The next prime is 1226819641. The reversal of 1226819630 is 369186221.

It is a happy number.

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, 1495712 + ... + 1496531.

It is an arithmetic number, because the mean of its divisors is an integer number (141383529).

Almost surely, 2^1226819630 is an apocalyptic number.

1226819630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226819630 is a deficient number, since it is larger than the sum of its proper divisors (1035316834).

1226819630 is a wasteful number, since it uses less digits than its factorization.

1226819630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992291.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1226819630 is about 35025.9850682318. The cubic root of 1226819630 is about 1070.5170092972.

The spelling of 1226819630 in words is "one billion, two hundred twenty-six million, eight hundred nineteen thousand, six hundred thirty".