242002405 has 8 divisors (see below), whose sum is σ = 290489472. Its totient is φ = 193544208.

The previous prime is 242002393. The next prime is 242002427. The reversal of 242002405 is 504200242.

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 242002405 - 2¹³ = 241994213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21952 + ... + 31078.

It is an arithmetic number, because the mean of its divisors is an integer number (36311184).

Almost surely, 2^242002405 is an apocalyptic number.

It is an amenable number.

242002405 is a deficient number, since it is larger than the sum of its proper divisors (48487067).

242002405 is an equidigital number, since it uses as much as digits as its factorization.

242002405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14435.

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 242002405 is about 15556.4264855397. The cubic root of 242002405 is about 623.1700327813.

Adding to 242002405 its reverse (504200242), we get a palindrome (746202647).

The spelling of 242002405 in words is "two hundred forty-two million, two thousand, four hundred five".