1242319320 has 96 divisors (see below), whose sum is σ = 4404600720. Its totient is φ = 301167360.

The previous prime is 1242319297. The next prime is 1242319357. The reversal of 1242319320 is 239132421.

It is a happy number.

1242319320 is a `hidden beast` number, since 1 + 24 + 2 + 319 + 320 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 152899 + ... + 160818.

Almost surely, 2^1242319320 is an apocalyptic number.

1242319320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1242319320 is an abundant number, since it is smaller than the sum of its proper divisors (3162281400).

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

1242319320 is a wasteful number, since it uses less digits than its factorization.

1242319320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313745 (or 313738 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 1242319320 is about 35246.5504695140. The cubic root of 1242319320 is about 1075.0064740912.

The spelling of 1242319320 in words is "one billion, two hundred forty-two million, three hundred nineteen thousand, three hundred twenty".