242120386 has 8 divisors (see below), whose sum is σ = 365082624. Its totient is φ = 120426180.

The previous prime is 242120383. The next prime is 242120387. The reversal of 242120386 is 683021242.

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

It is not an unprimeable number, because it can be changed into a prime (242120383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 316530 + ... + 317293.

It is an arithmetic number, because the mean of its divisors is an integer number (45635328).

Almost surely, 2^242120386 is an apocalyptic number.

242120386 is a deficient number, since it is larger than the sum of its proper divisors (122962238).

242120386 is a wasteful number, since it uses less digits than its factorization.

242120386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634016.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 242120386 is about 15560.2180575980. The cubic root of 242120386 is about 623.2712856029.

The spelling of 242120386 in words is "two hundred forty-two million, one hundred twenty thousand, three hundred eighty-six".