1242633799 has 8 divisors (see below), whose sum is σ = 1384443648. Its totient is φ = 1105631160.

The previous prime is 1242633797. The next prime is 1242633829. The reversal of 1242633799 is 9973362421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1242633799 - 2¹ = 1242633797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242633797) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201257 + ... + 1202290.

It is an arithmetic number, because the mean of its divisors is an integer number (173055456).

Almost surely, 2^1242633799 is an apocalyptic number.

1242633799 is a deficient number, since it is larger than the sum of its proper divisors (141809849).

1242633799 is a wasteful number, since it uses less digits than its factorization.

1242633799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403605.

The product of its digits is 489888, while the sum is 46.

The square root of 1242633799 is about 35251.0113188260. The cubic root of 1242633799 is about 1075.0971749906.

It can be divided in two parts, 12426 and 33799, that added together give a square (46225 = 215²).

The spelling of 1242633799 in words is "one billion, two hundred forty-two million, six hundred thirty-three thousand, seven hundred ninety-nine".