264172489 has 8 divisors (see below), whose sum is σ = 310071488. Its totient is φ = 220313520.

The previous prime is 264172453. The next prime is 264172499. The reversal of 264172489 is 984271462.

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

It is not a de Polignac number, because 264172489 - 2¹¹ = 264170441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264172499) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509727 + ... + 510244.

It is an arithmetic number, because the mean of its divisors is an integer number (38758936).

Almost surely, 2^264172489 is an apocalyptic number.

It is an amenable number.

264172489 is a deficient number, since it is larger than the sum of its proper divisors (45898999).

264172489 is a wasteful number, since it uses less digits than its factorization.

264172489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020015.

The product of its digits is 193536, while the sum is 43.

The square root of 264172489 is about 16253.3839245863. The cubic root of 264172489 is about 641.6465488117.

The spelling of 264172489 in words is "two hundred sixty-four million, one hundred seventy-two thousand, four hundred eighty-nine".