1223551504 has 40 divisors (see below), whose sum is σ = 2710937600. Its totient is φ = 524060928.

The previous prime is 1223551477. The next prime is 1223551547. The reversal of 1223551504 is 4051553221.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 339697 + ... + 343279.

It is an arithmetic number, because the mean of its divisors is an integer number (67773440).

Almost surely, 2^1223551504 is an apocalyptic number.

1223551504 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1223551504 is an abundant number, since it is smaller than the sum of its proper divisors (1487386096).

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

1223551504 is a wasteful number, since it uses less digits than its factorization.

1223551504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6647 (or 6641 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

The square root of 1223551504 is about 34979.3010793526. The cubic root of 1223551504 is about 1069.5655801930.

The spelling of 1223551504 in words is "one billion, two hundred twenty-three million, five hundred fifty-one thousand, five hundred four".