242000020 has 24 divisors (see below), whose sum is σ = 530296704. Its totient is φ = 92591136.

The previous prime is 241999991. The next prime is 242000023. The reversal of 242000020 is 20000242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 241999970 and 242000006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242000023) 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, 262584 + ... + 263503.

It is an arithmetic number, because the mean of its divisors is an integer number (22095696).

Almost surely, 2^242000020 is an apocalyptic number.

242000020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242000020 is an abundant number, since it is smaller than the sum of its proper divisors (288296684).

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

242000020 is a wasteful number, since it uses less digits than its factorization.

242000020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526119 (or 526117 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 10.

The square root of 242000020 is about 15556.3498289284. The cubic root of 242000020 is about 623.1679856041.

Adding to 242000020 its reverse (20000242), we get a palindrome (262000262).

The spelling of 242000020 in words is "two hundred forty-two million, twenty", and thus it is an aban number.