242225437 has 4 divisors (see below), whose sum is σ = 243283420. Its totient is φ = 241167456.

The previous prime is 242225411. The next prime is 242225441. The reversal of 242225437 is 734522242.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 160123716 + 82101721 = 12654^2 + 9061^2 .

It is a cyclic number.

It is not a de Polignac number, because 242225437 - 2⁷ = 242225309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242225399 and 242225408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242225497) 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, 528648 + ... + 529105.

It is an arithmetic number, because the mean of its divisors is an integer number (60820855).

Almost surely, 2^242225437 is an apocalyptic number.

It is an amenable number.

242225437 is a deficient number, since it is larger than the sum of its proper divisors (1057983).

242225437 is a wasteful number, since it uses less digits than its factorization.

242225437 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057982.

The product of its digits is 26880, while the sum is 31.

The square root of 242225437 is about 15563.5933190250. The cubic root of 242225437 is about 623.3614140520.

Adding to 242225437 its reverse (734522242), we get a palindrome (976747679).

The spelling of 242225437 in words is "two hundred forty-two million, two hundred twenty-five thousand, four hundred thirty-seven".