264021224 has 16 divisors (see below), whose sum is σ = 503431200. Its totient is φ = 129772912.

The previous prime is 264021221. The next prime is 264021227. The reversal of 264021224 is 422120462.

It is an interprime number because it is at equal distance from previous prime (264021221) and next prime (264021227).

It is a self number, because there is not a number n which added to its sum of digits gives 264021224.

It is not an unprimeable number, because it can be changed into a prime (264021221) 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, 279212 + ... + 280155.

It is an arithmetic number, because the mean of its divisors is an integer number (31464450).

Almost surely, 2^264021224 is an apocalyptic number.

It is an amenable number.

264021224 is a deficient number, since it is larger than the sum of its proper divisors (239409976).

264021224 is a wasteful number, since it uses less digits than its factorization.

264021224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 559432 (or 559428 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 264021224 is about 16248.7299195968. The cubic root of 264021224 is about 641.5240566265.

Adding to 264021224 its reverse (422120462), we get a palindrome (686141686).

The spelling of 264021224 in words is "two hundred sixty-four million, twenty-one thousand, two hundred twenty-four".