264542423 has 4 divisors (see below), whose sum is σ = 280103760. Its totient is φ = 248981088.

The previous prime is 264542393. The next prime is 264542459. The reversal of 264542423 is 324245462.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 264542423 - 2⁶ = 264542359 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 264542423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264542023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7780643 + ... + 7780676.

It is an arithmetic number, because the mean of its divisors is an integer number (70025940).

Almost surely, 2^264542423 is an apocalyptic number.

264542423 is a deficient number, since it is larger than the sum of its proper divisors (15561337).

264542423 is a wasteful number, since it uses less digits than its factorization.

264542423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15561336.

The product of its digits is 46080, while the sum is 32.

The square root of 264542423 is about 16264.7601580841. The cubic root of 264542423 is about 641.9459190736.

Adding to 264542423 its reverse (324245462), we get a palindrome (588787885).

The spelling of 264542423 in words is "two hundred sixty-four million, five hundred forty-two thousand, four hundred twenty-three".