1324256220 has 72 divisors (see below), whose sum is σ = 4590759264. Its totient is φ = 302686848.

The previous prime is 1324256209. The next prime is 1324256237. The reversal of 1324256220 is 226524231.

It is a happy number.

1324256220 is a `hidden beast` number, since 1 + 32 + 4 + 2 + 5 + 622 + 0 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 524239 + ... + 526758.

Almost surely, 2^1324256220 is an apocalyptic number.

1324256220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1324256220 is an abundant number, since it is smaller than the sum of its proper divisors (3266503044).

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

1324256220 is a wasteful number, since it uses less digits than its factorization.

1324256220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051019 (or 1051014 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

The square root of 1324256220 is about 36390.3314082189. The cubic root of 1324256220 is about 1098.1390628809.

The spelling of 1324256220 in words is "one billion, three hundred twenty-four million, two hundred fifty-six thousand, two hundred twenty".