264395542 has 4 divisors (see below), whose sum is σ = 396593316. Its totient is φ = 132197770.

The previous prime is 264395531. The next prime is 264395563. The reversal of 264395542 is 245593462.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 264395495 and 264395504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66098884 + ... + 66098887.

It is an arithmetic number, because the mean of its divisors is an integer number (99148329).

Almost surely, 2^264395542 is an apocalyptic number.

264395542 is a deficient number, since it is larger than the sum of its proper divisors (132197774).

264395542 is a wasteful number, since it uses less digits than its factorization.

264395542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132197773.

The product of its digits is 259200, while the sum is 40.

The square root of 264395542 is about 16260.2442171082. The cubic root of 264395542 is about 641.8270885869.

The spelling of 264395542 in words is "two hundred sixty-four million, three hundred ninety-five thousand, five hundred forty-two".