265247842 has 16 divisors (see below), whose sum is σ = 411148800. Its totient is φ = 128207520.

The previous prime is 265247839. The next prime is 265247849. The reversal of 265247842 is 248742562.

It is a junction number, because it is equal to n+sod(n) for n = 265247795 and 265247804.

It is not an unprimeable number, because it can be changed into a prime (265247849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78259 + ... + 81577.

It is an arithmetic number, because the mean of its divisors is an integer number (25696800).

Almost surely, 2^265247842 is an apocalyptic number.

265247842 is a deficient number, since it is larger than the sum of its proper divisors (145900958).

265247842 is a wasteful number, since it uses less digits than its factorization.

265247842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4641.

The product of its digits is 215040, while the sum is 40.

The square root of 265247842 is about 16286.4312235677. The cubic root of 265247842 is about 642.5160090284.

The spelling of 265247842 in words is "two hundred sixty-five million, two hundred forty-seven thousand, eight hundred forty-two".