1213274800 has 30 divisors (see below), whose sum is σ = 2914893668. Its totient is φ = 485309760.

The previous prime is 1213274737. The next prime is 1213274833. The reversal of 1213274800 is 84723121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1516194 + ... + 1516993.

Almost surely, 2^1213274800 is an apocalyptic number.

1213274800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213274800 is an abundant number, since it is smaller than the sum of its proper divisors (1701618868).

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

1213274800 is a wasteful number, since it uses less digits than its factorization.

1213274800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033205 (or 3033194 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 1213274800 is about 34832.0943958298. The cubic root of 1213274800 is about 1066.5627025409.

Adding to 1213274800 its reverse (84723121), we get a palindrome (1297997921).

The spelling of 1213274800 in words is "one billion, two hundred thirteen million, two hundred seventy-four thousand, eight hundred".