47638422 has 64 divisors (see below), whose sum is σ = 115584000. Its totient is φ = 14455584.

The previous prime is 47638421. The next prime is 47638457. The reversal of 47638422 is 22483674.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47638421) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55029 + ... + 55887.

It is an arithmetic number, because the mean of its divisors is an integer number (1806000).

Almost surely, 2^47638422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47638422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57792000).

47638422 is an abundant number, since it is smaller than the sum of its proper divisors (67945578).

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

47638422 is a wasteful number, since it uses less digits than its factorization.

47638422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 962 (or 956 counting only the distinct ones).

The product of its digits is 64512, while the sum is 36.

The square root of 47638422 is about 6902.0592579317. The cubic root of 47638422 is about 362.5092747528.

The spelling of 47638422 in words is "forty-seven million, six hundred thirty-eight thousand, four hundred twenty-two".