47636220 has 48 divisors (see below), whose sum is σ = 139184640. Its totient is φ = 12150336.

The previous prime is 47636213. The next prime is 47636221. The reversal of 47636220 is 2263674.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47636221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15880 + ... + 18639.

It is an arithmetic number, because the mean of its divisors is an integer number (2899680).

Almost surely, 2^47636220 is an apocalyptic number.

It is an amenable number.

47636220 is an abundant number, since it is smaller than the sum of its proper divisors (91548420).

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

47636220 is a wasteful number, since it uses less digits than its factorization.

47636220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34554 (or 34552 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 30.

The square root of 47636220 is about 6901.8997384778. The cubic root of 47636220 is about 362.5036892213.

Adding to 47636220 its reverse (2263674), we get a palindrome (49899894).

The spelling of 47636220 in words is "forty-seven million, six hundred thirty-six thousand, two hundred twenty".