242615643 has 8 divisors (see below), whose sum is σ = 328315968. Its totient is φ = 159329544.

The previous prime is 242615627. The next prime is 242615663. The reversal of 242615643 is 346516242.

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

It is not a de Polignac number, because 242615643 - 2⁴ = 242615627 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (242615603) 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, 603321 + ... + 603722.

It is an arithmetic number, because the mean of its divisors is an integer number (41039496).

Almost surely, 2^242615643 is an apocalyptic number.

242615643 is a deficient number, since it is larger than the sum of its proper divisors (85700325).

242615643 is a wasteful number, since it uses less digits than its factorization.

242615643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1207113.

The product of its digits is 34560, while the sum is 33.

The square root of 242615643 is about 15576.1241327873. The cubic root of 242615643 is about 623.6959630994.

The spelling of 242615643 in words is "two hundred forty-two million, six hundred fifteen thousand, six hundred forty-three".