1223914836 has 12 divisors (see below), whose sum is σ = 2855801312. Its totient is φ = 407971608.

The previous prime is 1223914831. The next prime is 1223914837. The reversal of 1223914836 is 6384193221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1223914794 and 1223914803.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223914831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50996440 + ... + 50996463.

Almost surely, 2^1223914836 is an apocalyptic number.

It is an amenable number.

1223914836 is an abundant number, since it is smaller than the sum of its proper divisors (1631886476).

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

1223914836 is a wasteful number, since it uses less digits than its factorization.

1223914836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101992910 (or 101992908 counting only the distinct ones).

The product of its digits is 62208, while the sum is 39.

The square root of 1223914836 is about 34984.4942224409. The cubic root of 1223914836 is about 1069.6714384101.

The spelling of 1223914836 in words is "one billion, two hundred twenty-three million, nine hundred fourteen thousand, eight hundred thirty-six".