4640361220 has 48 divisors (see below), whose sum is σ = 10637863488. Its totient is φ = 1686258560.

The previous prime is 4640361199. The next prime is 4640361233. The reversal of 4640361220 is 221630464.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 360414 + ... + 373066.

It is an arithmetic number, because the mean of its divisors is an integer number (221622156).

Almost surely, 2^4640361220 is an apocalyptic number.

It is an amenable number.

4640361220 is an abundant number, since it is smaller than the sum of its proper divisors (5997502268).

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

4640361220 is a wasteful number, since it uses less digits than its factorization.

4640361220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14340 (or 14338 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 4640361220 is about 68120.1968582006. The cubic root of 4640361220 is about 1667.9534637474.

Adding to 4640361220 its reverse (221630464), we get a palindrome (4861991684).

It can be divided in two parts, 4640361 and 220, that added together give a triangular number (4640581 = T₃₀₄₆).

The spelling of 4640361220 in words is "four billion, six hundred forty million, three hundred sixty-one thousand, two hundred twenty".