47271420 has 72 divisors (see below), whose sum is σ = 163878624. Its totient is φ = 10804608.

The previous prime is 47271397. The next prime is 47271443. The reversal of 47271420 is 2417274.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (47271397) and next prime (47271443).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17499 + ... + 20018.

It is an arithmetic number, because the mean of its divisors is an integer number (2276092).

Almost surely, 2^47271420 is an apocalyptic number.

It is an amenable number.

47271420 is an abundant number, since it is smaller than the sum of its proper divisors (116607204).

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

47271420 is a wasteful number, since it uses less digits than its factorization.

47271420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37539 (or 37534 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 47271420 is about 6875.4214416281. The cubic root of 47271420 is about 361.5759612645.

Adding to 47271420 its reverse (2417274), we get a palindrome (49688694).

The spelling of 47271420 in words is "forty-seven million, two hundred seventy-one thousand, four hundred twenty".