242044661 has 4 divisors (see below), whose sum is σ = 242191872. Its totient is φ = 241897452.

The previous prime is 242044651. The next prime is 242044679. The reversal of 242044661 is 166440242.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 166440242 = 2 ⋅83220121.

It is a cyclic number.

It is not a de Polignac number, because 242044661 - 2⁶ = 242044597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242044631) 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, 71111 + ... + 74436.

It is an arithmetic number, because the mean of its divisors is an integer number (60547968).

Almost surely, 2^242044661 is an apocalyptic number.

It is an amenable number.

242044661 is a deficient number, since it is larger than the sum of its proper divisors (147211).

242044661 is a wasteful number, since it uses less digits than its factorization.

242044661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147210.

The product of its (nonzero) digits is 9216, while the sum is 29.

The square root of 242044661 is about 15557.7845787888. The cubic root of 242044661 is about 623.2063012093.

The spelling of 242044661 in words is "two hundred forty-two million, forty-four thousand, six hundred sixty-one".