1242688383 has 12 divisors (see below), whose sum is σ = 1797043248. Its totient is φ = 827513280.

The previous prime is 1242688373. The next prime is 1242688397. The reversal of 1242688383 is 3838862421.

1242688383 is a `hidden beast` number, since 1 + 2 + 4 + 268 + 8 + 383 = 666.

It is not a de Polignac number, because 1242688383 - 2¹⁶ = 1242622847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242688313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70435 + ... + 86292.

It is an arithmetic number, because the mean of its divisors is an integer number (149753604).

Almost surely, 2^1242688383 is an apocalyptic number.

1242688383 is a deficient number, since it is larger than the sum of its proper divisors (554354865).

1242688383 is a wasteful number, since it uses less digits than its factorization.

1242688383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157614 (or 157611 counting only the distinct ones).

The product of its digits is 442368, while the sum is 45.

The square root of 1242688383 is about 35251.7855292466. The cubic root of 1242688383 is about 1075.1129163525.

It can be divided in two parts, 124268 and 8383, that added together give a cube (132651 = 51³).

The spelling of 1242688383 in words is "one billion, two hundred forty-two million, six hundred eighty-eight thousand, three hundred eighty-three".