1213800424 has 16 divisors (see below), whose sum is σ = 2278098720. Its totient is φ = 606307440.

The previous prime is 1213800407. The next prime is 1213800487. The reversal of 1213800424 is 4240083121.

It is a super-2 number, since 2×1213800424² = 2946622938605159552, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65334 + ... + 81829.

It is an arithmetic number, because the mean of its divisors is an integer number (142381170).

Almost surely, 2^1213800424 is an apocalyptic number.

It is an amenable number.

1213800424 is a deficient number, since it is larger than the sum of its proper divisors (1064298296).

1213800424 is a wasteful number, since it uses less digits than its factorization.

1213800424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148200 (or 148196 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1213800424 is about 34839.6386892861. The cubic root of 1213800424 is about 1066.7167017328.

Adding to 1213800424 its reverse (4240083121), we get a palindrome (5453883545).

The spelling of 1213800424 in words is "one billion, two hundred thirteen million, eight hundred thousand, four hundred twenty-four".