1242966844 has 24 divisors (see below), whose sum is σ = 2490334560. Its totient is φ = 531757056.

The previous prime is 1242966797. The next prime is 1242966853. The reversal of 1242966844 is 4486692421.

It is a junction number, because it is equal to n+sod(n) for n = 1242966794 and 1242966803.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23077 + ... + 54940.

It is an arithmetic number, because the mean of its divisors is an integer number (103763940).

Almost surely, 2^1242966844 is an apocalyptic number.

1242966844 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1242966844 is an abundant number, since it is smaller than the sum of its proper divisors (1247367716).

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

1242966844 is a wasteful number, since it uses less digits than its factorization.

1242966844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78597 (or 78595 counting only the distinct ones).

The product of its digits is 663552, while the sum is 46.

The square root of 1242966844 is about 35255.7349093733. The cubic root of 1242966844 is about 1075.1932139458.

The spelling of 1242966844 in words is "one billion, two hundred forty-two million, nine hundred sixty-six thousand, eight hundred forty-four".