1242085944 has 32 divisors (see below), whose sum is σ = 3387507840. Its totient is φ = 376389600.

The previous prime is 1242085937. The next prime is 1242085969. The reversal of 1242085944 is 4495802421.

It is a super-2 number, since 2×1242085944² = 3085554984564742272, which contains 22 as substring.

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, 2352172 + ... + 2352699.

It is an arithmetic number, because the mean of its divisors is an integer number (105859620).

Almost surely, 2^1242085944 is an apocalyptic number.

It is an amenable number.

1242085944 is an abundant number, since it is smaller than the sum of its proper divisors (2145421896).

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

1242085944 is a wasteful number, since it uses less digits than its factorization.

1242085944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4704891 (or 4704887 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 39.

The square root of 1242085944 is about 35243.2396921736. The cubic root of 1242085944 is about 1074.9391547318.

The spelling of 1242085944 in words is "one billion, two hundred forty-two million, eighty-five thousand, nine hundred forty-four".