242554644 has 36 divisors (see below), whose sum is σ = 614239444. Its totient is φ = 80704512.

The previous prime is 242554621. The next prime is 242554649. The reversal of 242554644 is 446455242.

242554644 is a `hidden beast` number, since 2 + 4 + 2 + 5 + 5 + 4 + 644 = 666.

242554644 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 2 ways, for example, as 229159044 + 13395600 = 15138^2 + 3660^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 242554599 and 242554608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242554649) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14934 + ... + 26610.

Almost surely, 2^242554644 is an apocalyptic number.

It is an amenable number.

242554644 is an abundant number, since it is smaller than the sum of its proper divisors (371684800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242554644 is a wasteful number, since it uses less digits than its factorization.

242554644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12264 (or 12259 counting only the distinct ones).

The product of its digits is 153600, while the sum is 36.

The square root of 242554644 is about 15574.1659166711. The cubic root of 242554644 is about 623.6436883457.

The spelling of 242554644 in words is "two hundred forty-two million, five hundred fifty-four thousand, six hundred forty-four".