1223923550 has 24 divisors (see below), whose sum is σ = 2302084800. Its totient is φ = 484066880.

The previous prime is 1223923549. The next prime is 1223923573. The reversal of 1223923550 is 553293221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133070 + ... + 141969.

It is an arithmetic number, because the mean of its divisors is an integer number (95920200).

Almost surely, 2^1223923550 is an apocalyptic number.

1223923550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223923550 is a deficient number, since it is larger than the sum of its proper divisors (1078161250).

1223923550 is a wasteful number, since it uses less digits than its factorization.

1223923550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275140 (or 275135 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1223923550 is about 34984.6187631079. The cubic root of 1223923550 is about 1069.6739770113.

The spelling of 1223923550 in words is "one billion, two hundred twenty-three million, nine hundred twenty-three thousand, five hundred fifty".