1223835552 has 36 divisors (see below), whose sum is σ = 3480283170. Its totient is φ = 407945088.

The previous prime is 1223835533. The next prime is 1223835617. The reversal of 1223835552 is 2555383221.

1223835552 is a `hidden beast` number, since 1 + 2 + 23 + 83 + 5 + 552 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1059893136 + 163942416 = 32556^2 + 12804^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2124427 + ... + 2125002.

Almost surely, 2^1223835552 is an apocalyptic number.

1223835552 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1223835552 is an abundant number, since it is smaller than the sum of its proper divisors (2256447618).

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

1223835552 is a wasteful number, since it uses less digits than its factorization.

1223835552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4249445 (or 4249434 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

The square root of 1223835552 is about 34983.3610735161. The cubic root of 1223835552 is about 1069.6483404899.

The spelling of 1223835552 in words is "one billion, two hundred twenty-three million, eight hundred thirty-five thousand, five hundred fifty-two".