4622721620 has 24 divisors (see below), whose sum is σ = 10590235488. Its totient is φ = 1680989600.

The previous prime is 4622721611. The next prime is 4622721629. The reversal of 4622721620 is 261272264.

It is an interprime number because it is at equal distance from previous prime (4622721611) and next prime (4622721629).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4622721629) 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, 10505966 + ... + 10506405.

It is an arithmetic number, because the mean of its divisors is an integer number (441259812).

Almost surely, 2^4622721620 is an apocalyptic number.

It is an amenable number.

4622721620 is an abundant number, since it is smaller than the sum of its proper divisors (5967513868).

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

4622721620 is a wasteful number, since it uses less digits than its factorization.

4622721620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21012391 (or 21012389 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4622721620 is about 67990.5994972834. The cubic root of 4622721620 is about 1665.8372928630.

Adding to 4622721620 its reverse (261272264), we get a palindrome (4883993884).

The spelling of 4622721620 in words is "four billion, six hundred twenty-two million, seven hundred twenty-one thousand, six hundred twenty".