1242023244 has 48 divisors (see below), whose sum is σ = 3613161216. Its totient is φ = 322603200.

The previous prime is 1242023239. The next prime is 1242023249. The reversal of 1242023244 is 4423202421.

It is an interprime number because it is at equal distance from previous prime (1242023239) and next prime (1242023249).

It is not an unprimeable number, because it can be changed into a prime (1242023249) 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 15 ways as a sum of consecutive naturals, for example, 671167 + ... + 673014.

It is an arithmetic number, because the mean of its divisors is an integer number (75274192).

Almost surely, 2^1242023244 is an apocalyptic number.

1242023244 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1242023244 is an abundant number, since it is smaller than the sum of its proper divisors (2371137972).

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

1242023244 is a wasteful number, since it uses less digits than its factorization.

1242023244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344206 (or 1344204 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 1242023244 is about 35242.3501486493. The cubic root of 1242023244 is about 1074.9210669284.

Adding to 1242023244 its reverse (4423202421), we get a palindrome (5665225665).

The spelling of 1242023244 in words is "one billion, two hundred forty-two million, twenty-three thousand, two hundred forty-four".