242123620 has 12 divisors (see below), whose sum is σ = 508459644. Its totient is φ = 96849440.

The previous prime is 242123603. The next prime is 242123621. The reversal of 242123620 is 26321242.

242123620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 175668516 + 66455104 = 13254^2 + 8152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 242123591 and 242123600.

It is not an unprimeable number, because it can be changed into a prime (242123621) 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, 6053071 + ... + 6053110.

It is an arithmetic number, because the mean of its divisors is an integer number (42371637).

Almost surely, 2^242123620 is an apocalyptic number.

242123620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242123620 is an abundant number, since it is smaller than the sum of its proper divisors (266336024).

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

242123620 is a wasteful number, since it uses less digits than its factorization.

242123620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12106190 (or 12106188 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 242123620 is about 15560.3219761032. The cubic root of 242123620 is about 623.2740606004.

Adding to 242123620 its reverse (26321242), we get a palindrome (268444862).

The spelling of 242123620 in words is "two hundred forty-two million, one hundred twenty-three thousand, six hundred twenty".