242002420 has 48 divisors (see below), whose sum is σ = 559048896. Its totient is φ = 87991200.

The previous prime is 242002393. The next prime is 242002427. The reversal of 242002420 is 24200242.

It is a junction number, because it is equal to n+sod(n) for n = 242002394 and 242002403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242002427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22075 + ... + 31165.

It is an arithmetic number, because the mean of its divisors is an integer number (11646852).

Almost surely, 2^242002420 is an apocalyptic number.

242002420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 242002420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (279524448).

242002420 is an abundant number, since it is smaller than the sum of its proper divisors (317046476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242002420 is a wasteful number, since it uses less digits than its factorization.

242002420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9133 (or 9109 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 242002420 is about 15556.4269676555. The cubic root of 242002420 is about 623.1700456566.

Adding to 242002420 its reverse (24200242), we get a palindrome (266202662).

The spelling of 242002420 in words is "two hundred forty-two million, two thousand, four hundred twenty".