242040661 has 8 divisors (see below), whose sum is σ = 253482624. Its totient is φ = 230675280.

The previous prime is 242040637. The next prime is 242040683. The reversal of 242040661 is 166040242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242040661 - 2²⁷ = 107822933 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 (242040961) 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, 12625 + ... + 25366.

It is an arithmetic number, because the mean of its divisors is an integer number (31685328).

Almost surely, 2^242040661 is an apocalyptic number.

It is an amenable number.

242040661 is a deficient number, since it is larger than the sum of its proper divisors (11441963).

242040661 is a wasteful number, since it uses less digits than its factorization.

242040661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38291.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 242040661 is about 15557.6560252501. The cubic root of 242040661 is about 623.2028681804.

The spelling of 242040661 in words is "two hundred forty-two million, forty thousand, six hundred sixty-one".