264412220 has 24 divisors (see below), whose sum is σ = 587929104. Its totient is φ = 99543296.

The previous prime is 264412219. The next prime is 264412223. The reversal of 264412220 is 22214462.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264412223) 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, 388502 + ... + 389181.

It is an arithmetic number, because the mean of its divisors is an integer number (24497046).

Almost surely, 2^264412220 is an apocalyptic number.

264412220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

264412220 is an abundant number, since it is smaller than the sum of its proper divisors (323516884).

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

264412220 is a wasteful number, since it uses less digits than its factorization.

264412220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777709 (or 777707 counting only the distinct ones).

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

The square root of 264412220 is about 16260.7570549467. The cubic root of 264412220 is about 641.8405837301.

Adding to 264412220 its reverse (22214462), we get a palindrome (286626682).

The spelling of 264412220 in words is "two hundred sixty-four million, four hundred twelve thousand, two hundred twenty".