215479264 has 216 divisors, whose sum is σ = 599064984. Its totient is φ = 74995200.

The previous prime is 215479261. The next prime is 215479307. The reversal of 215479264 is 462974512.

Its product of digits (120960) is a multiple of the sum of its prime divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215479261) 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 35 ways as a sum of consecutive naturals, for example, 6950929 + ... + 6950959.

It is an arithmetic number, because the mean of its divisors is an integer number (2773449).

Almost surely, 2^215479264 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215479264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (299532492).

215479264 is an abundant number, since it is smaller than the sum of its proper divisors (383585720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215479264 is a wasteful number, since it uses less digits than its factorization.

215479264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 64 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 215479264 is about 14679.2119679498. The cubic root of 215479264 is about 599.5174490487.

It can be divided in two parts, 2154 and 79264, that added together give a palindrome (81418).

The spelling of 215479264 in words is "two hundred fifteen million, four hundred seventy-nine thousand, two hundred sixty-four".