242412431 has 4 divisors (see below), whose sum is σ = 255171000. Its totient is φ = 229653864.

The previous prime is 242412427. The next prime is 242412437. The reversal of 242412431 is 134214242.

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

It is a cyclic number.

It is not a de Polignac number, because 242412431 - 2² = 242412427 is a prime.

It is a super-2 number, since 2×242412431² = 117527573406659522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242412397 and 242412406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242412437) 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, 6379256 + ... + 6379293.

It is an arithmetic number, because the mean of its divisors is an integer number (63792750).

Almost surely, 2^242412431 is an apocalyptic number.

242412431 is a deficient number, since it is larger than the sum of its proper divisors (12758569).

242412431 is a wasteful number, since it uses less digits than its factorization.

242412431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12758568.

The product of its digits is 1536, while the sum is 23.

The square root of 242412431 is about 15569.5995773816. The cubic root of 242412431 is about 623.5217809994.

Adding to 242412431 its reverse (134214242), we get a palindrome (376626673).

The spelling of 242412431 in words is "two hundred forty-two million, four hundred twelve thousand, four hundred thirty-one".