5640467220 has 72 divisors (see below), whose sum is σ = 17571854664. Its totient is φ = 1463470848.

The previous prime is 5640467219. The next prime is 5640467221. The reversal of 5640467220 is 227640465.

5640467220 is a `hidden beast` number, since 5 + 640 + 4 + 6 + 7 + 2 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5640467219) and next prime (5640467221).

It can be written as a sum of positive squares in 4 ways, for example, as 2059162884 + 3581304336 = 45378^2 + 59844^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5640467221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 416799 + ... + 430118.

It is an arithmetic number, because the mean of its divisors is an integer number (244053537).

Almost surely, 2^5640467220 is an apocalyptic number.

It is an amenable number.

5640467220 is an abundant number, since it is smaller than the sum of its proper divisors (11931387444).

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

5640467220 is a wasteful number, since it uses less digits than its factorization.

5640467220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846969 (or 846964 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 36.

The square root of 5640467220 is about 75103.0440128761. The cubic root of 5640467220 is about 1780.0752419484.

The spelling of 5640467220 in words is "five billion, six hundred forty million, four hundred sixty-seven thousand, two hundred twenty".