1223340400 has 60 divisors (see below), whose sum is σ = 3111979392. Its totient is φ = 460549120.

The previous prime is 1223340347. The next prime is 1223340401. The reversal of 1223340400 is 40433221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223340401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83152 + ... + 96751.

Almost surely, 2^1223340400 is an apocalyptic number.

1223340400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223340400 is an abundant number, since it is smaller than the sum of its proper divisors (1888638992).

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

1223340400 is a wasteful number, since it uses less digits than its factorization.

1223340400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179938 (or 179927 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 1223340400 is about 34976.2833931794. The cubic root of 1223340400 is about 1069.5040645810.

Adding to 1223340400 its reverse (40433221), we get a palindrome (1263773621).

The spelling of 1223340400 in words is "one billion, two hundred twenty-three million, three hundred forty thousand, four hundred".