242754021 has 6 divisors (see below), whose sum is σ = 350644710. Its totient is φ = 161836008.

The previous prime is 242754011. The next prime is 242754037. The reversal of 242754021 is 120457242.

242754021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 223831521 + 18922500 = 14961^2 + 4350^2 .

It is not a de Polignac number, because 242754021 - 2⁹ = 242753509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242754011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 13486326 + ... + 13486343.

It is an arithmetic number, because the mean of its divisors is an integer number (58440785).

Almost surely, 2^242754021 is an apocalyptic number.

It is an amenable number.

242754021 is a deficient number, since it is larger than the sum of its proper divisors (107890689).

242754021 is a wasteful number, since it uses less digits than its factorization.

242754021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26972675 (or 26972672 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 27.

The square root of 242754021 is about 15580.5654903794. The cubic root of 242754021 is about 623.8145174180.

The spelling of 242754021 in words is "two hundred forty-two million, seven hundred fifty-four thousand, twenty-one".