1223508936 has 32 divisors (see below), whose sum is σ = 3294063360. Its totient is φ = 376464192.

The previous prime is 1223508929. The next prime is 1223508947. The reversal of 1223508936 is 6398053221.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a junction number, because it is equal to n+sod(n) for n = 1223508894 and 1223508903.

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, 1960440 + ... + 1961063.

It is an arithmetic number, because the mean of its divisors is an integer number (102939480).

Almost surely, 2^1223508936 is an apocalyptic number.

It is an amenable number.

1223508936 is an abundant number, since it is smaller than the sum of its proper divisors (2070554424).

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

1223508936 is a wasteful number, since it uses less digits than its factorization.

1223508936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921525 (or 3921521 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 1223508936 is about 34978.6925999243. The cubic root of 1223508936 is about 1069.5531764663.

The spelling of 1223508936 in words is "one billion, two hundred twenty-three million, five hundred eight thousand, nine hundred thirty-six".