4621221312 has 56 divisors (see below), whose sum is σ = 12234068496. Its totient is φ = 1539514368.

The previous prime is 4621221289. The next prime is 4621221317. The reversal of 4621221312 is 2131221264.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4621221317) 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, 381298 + ... + 393230.

Almost surely, 2^4621221312 is an apocalyptic number.

It is an amenable number.

4621221312 is an abundant number, since it is smaller than the sum of its proper divisors (7612847184).

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

4621221312 is a wasteful number, since it uses less digits than its factorization.

4621221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13965 (or 13955 counting only the distinct ones).

The product of its digits is 1152, while the sum is 24.

The square root of 4621221312 is about 67979.5654001995. The cubic root of 4621221312 is about 1665.6570570877.

Adding to 4621221312 its reverse (2131221264), we get a palindrome (6752442576).

The spelling of 4621221312 in words is "four billion, six hundred twenty-one million, two hundred twenty-one thousand, three hundred twelve".