47660220 has 36 divisors (see below), whose sum is σ = 144569880. Its totient is φ = 12709344.

The previous prime is 47660213. The next prime is 47660233. The reversal of 47660220 is 2206674.

47660220 = 1072² + 1073² + ... + 1111².

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132210 + ... + 132569.

It is an arithmetic number, because the mean of its divisors is an integer number (4015830).

Almost surely, 2^47660220 is an apocalyptic number.

It is an amenable number.

47660220 is an abundant number, since it is smaller than the sum of its proper divisors (96909660).

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

47660220 is a wasteful number, since it uses less digits than its factorization.

47660220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264794 (or 264789 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 47660220 is about 6903.6381712833. The cubic root of 47660220 is about 362.5645576659.

Adding to 47660220 its reverse (2206674), we get a palindrome (49866894).

The spelling of 47660220 in words is "forty-seven million, six hundred sixty thousand, two hundred twenty".