4640612720 has 20 divisors (see below), whose sum is σ = 10789424760. Its totient is φ = 1856245056.

The previous prime is 4640612719. The next prime is 4640612729. The reversal of 4640612720 is 272160464.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640612729) 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, 29003750 + ... + 29003909.

It is an arithmetic number, because the mean of its divisors is an integer number (539471238).

Almost surely, 2^4640612720 is an apocalyptic number.

4640612720 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4640612720 is an abundant number, since it is smaller than the sum of its proper divisors (6148812040).

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

4640612720 is a wasteful number, since it uses less digits than its factorization.

4640612720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58007672 (or 58007666 counting only the distinct ones).

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

The square root of 4640612720 is about 68122.0428349004. The cubic root of 4640612720 is about 1667.9835966543.

The spelling of 4640612720 in words is "four billion, six hundred forty million, six hundred twelve thousand, seven hundred twenty".