265616242 has 8 divisors (see below), whose sum is σ = 400727916. Its totient is φ = 132040272.

The previous prime is 265616237. The next prime is 265616261. The reversal of 265616242 is 242616562.

It can be written as a sum of positive squares in 2 ways, for example, as 245893761 + 19722481 = 15681^2 + 4441^2 .

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

It is a super-3 number, since 3×265616242³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 265616198 and 265616207.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 383493 + ... + 384184.

Almost surely, 2^265616242 is an apocalyptic number.

265616242 is a deficient number, since it is larger than the sum of its proper divisors (135111674).

265616242 is a wasteful number, since it uses less digits than its factorization.

265616242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 767852.

The product of its digits is 34560, while the sum is 34.

The square root of 265616242 is about 16297.7373276170. The cubic root of 265616242 is about 642.8133327134.

The spelling of 265616242 in words is "two hundred sixty-five million, six hundred sixteen thousand, two hundred forty-two".