264042861 has 16 divisors (see below), whose sum is σ = 373724928. Its totient is φ = 165248000.

The previous prime is 264042839. The next prime is 264042887. The reversal of 264042861 is 168240462.

It is a cyclic number.

It is not a de Polignac number, because 264042861 - 2⁹ = 264042349 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264042811) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13996 + ... + 26906.

It is an arithmetic number, because the mean of its divisors is an integer number (23357808).

Almost surely, 2^264042861 is an apocalyptic number.

It is an amenable number.

264042861 is a deficient number, since it is larger than the sum of its proper divisors (109682067).

264042861 is a wasteful number, since it uses less digits than its factorization.

264042861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13332.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 264042861 is about 16249.3957118411. The cubic root of 264042861 is about 641.5415808198.

The spelling of 264042861 in words is "two hundred sixty-four million, forty-two thousand, eight hundred sixty-one".