1223140400 has 30 divisors (see below), whose sum is σ = 2938595772. Its totient is φ = 489256000.

The previous prime is 1223140393. The next prime is 1223140403. The reversal of 1223140400 is 40413221.

It is a super-2 number, since 2×1223140400² = 2992144876224320000, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1223140403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1528526 + ... + 1529325.

Almost surely, 2^1223140400 is an apocalyptic number.

1223140400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1223140400 is an abundant number, since it is smaller than the sum of its proper divisors (1715455372).

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

1223140400 is a wasteful number, since it uses less digits than its factorization.

1223140400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057869 (or 3057858 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1223140400 is about 34973.4241960950. The cubic root of 1223140400 is about 1069.4457781409.

Adding to 1223140400 its reverse (40413221), we get a palindrome (1263553621).

The spelling of 1223140400 in words is "one billion, two hundred twenty-three million, one hundred forty thousand, four hundred".