242262493 has 4 divisors (see below), whose sum is σ = 264286368. Its totient is φ = 220238620.

The previous prime is 242262463. The next prime is 242262547. The reversal of 242262493 is 394262242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242262493 is a prime.

It is a super-2 number, since 2×242262493² = 117382231029150098, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242262403) 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, 11011921 + ... + 11011942.

It is an arithmetic number, because the mean of its divisors is an integer number (66071592).

Almost surely, 2^242262493 is an apocalyptic number.

It is an amenable number.

242262493 is a deficient number, since it is larger than the sum of its proper divisors (22023875).

242262493 is a wasteful number, since it uses less digits than its factorization.

242262493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22023874.

The product of its digits is 41472, while the sum is 34.

The square root of 242262493 is about 15564.7837440807. The cubic root of 242262493 is about 623.3932000101.

The spelling of 242262493 in words is "two hundred forty-two million, two hundred sixty-two thousand, four hundred ninety-three".