47352420 has 72 divisors (see below), whose sum is σ = 144196416. Its totient is φ = 12578112.

The previous prime is 47352419. The next prime is 47352421. The reversal of 47352420 is 2425374.

It is an interprime number because it is at equal distance from previous prime (47352419) and next prime (47352421).

It is not an unprimeable number, because it can be changed into a prime (47352421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90279 + ... + 90801.

It is an arithmetic number, because the mean of its divisors is an integer number (2002728).

Almost surely, 2^47352420 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47352420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (72098208).

47352420 is an abundant number, since it is smaller than the sum of its proper divisors (96843996).

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

47352420 is a wasteful number, since it uses less digits than its factorization.

47352420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041 (or 1036 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The square root of 47352420 is about 6881.3094684079. The cubic root of 47352420 is about 361.7823646301.

Adding to 47352420 its reverse (2425374), we get a palindrome (49777794).

The spelling of 47352420 in words is "forty-seven million, three hundred fifty-two thousand, four hundred twenty".