1226966390 has 16 divisors (see below), whose sum is σ = 2378427408. Its totient is φ = 453033696.

The previous prime is 1226966353. The next prime is 1226966393. The reversal of 1226966390 is 936696221.

1226966390 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1226966393) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4718972 + ... + 4719231.

It is an arithmetic number, because the mean of its divisors is an integer number (148651713).

Almost surely, 2^1226966390 is an apocalyptic number.

1226966390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1226966390 is a deficient number, since it is larger than the sum of its proper divisors (1151461018).

1226966390 is a wasteful number, since it uses less digits than its factorization.

1226966390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9438223.

The product of its (nonzero) digits is 209952, while the sum is 44.

The square root of 1226966390 is about 35028.0800216055. The cubic root of 1226966390 is about 1070.5596949559.

The spelling of 1226966390 in words is "one billion, two hundred twenty-six million, nine hundred sixty-six thousand, three hundred ninety".