1242344200 has 48 divisors (see below), whose sum is σ = 2891064960. Its totient is φ = 496488000.

The previous prime is 1242344183. The next prime is 1242344231. The reversal of 1242344200 is 24432421.

It is a happy number.

It is a super-2 number, since 2×1242344200² = 3086838222547280000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

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 11 ways as a sum of consecutive naturals, for example, 300145 + ... + 304255.

It is an arithmetic number, because the mean of its divisors is an integer number (60230520).

Almost surely, 2^1242344200 is an apocalyptic number.

1242344200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242344200 is an abundant number, since it is smaller than the sum of its proper divisors (1648720760).

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

1242344200 is a wasteful number, since it uses less digits than its factorization.

1242344200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5638 (or 5629 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 1242344200 is about 35246.9034100870. The cubic root of 1242344200 is about 1075.0136504486.

Adding to 1242344200 its reverse (24432421), we get a palindrome (1266776621).

The spelling of 1242344200 in words is "one billion, two hundred forty-two million, three hundred forty-four thousand, two hundred".