242134420 has 24 divisors (see below), whose sum is σ = 554708448. Its totient is φ = 88048800.

The previous prime is 242134367. The next prime is 242134421. The reversal of 242134420 is 24431242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 242134391 and 242134400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242134421) 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, 550086 + ... + 550525.

It is an arithmetic number, because the mean of its divisors is an integer number (23112852).

Almost surely, 2^242134420 is an apocalyptic number.

242134420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242134420 is an abundant number, since it is smaller than the sum of its proper divisors (312574028).

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

242134420 is a wasteful number, since it uses less digits than its factorization.

242134420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1100631 (or 1100629 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 242134420 is about 15560.6690087541. The cubic root of 242134420 is about 623.2833275742.

Adding to 242134420 its reverse (24431242), we get a palindrome (266565662).

The spelling of 242134420 in words is "two hundred forty-two million, one hundred thirty-four thousand, four hundred twenty".