47432385 has 168 divisors, whose sum is σ = 115210944. Its totient is φ = 18195840.

The previous prime is 47432383. The next prime is 47432419. The reversal of 47432385 is 58323474.

It is a happy number.

It is not a de Polignac number, because 47432385 - 2¹ = 47432383 is a prime.

It is a super-2 number, since 2×47432385² = 4499662293576450, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (47432381) by changing a digit.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 3648639 + ... + 3648651.

Almost surely, 2^47432385 is an apocalyptic number.

47432385 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

47432385 is an abundant number, since it is smaller than the sum of its proper divisors (67778559).

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

47432385 is a wasteful number, since it uses less digits than its factorization.

47432385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 39 counting only the distinct ones).

The product of its digits is 80640, while the sum is 36.

The square root of 47432385 is about 6887.1173214924. The cubic root of 47432385 is about 361.9858998608.

The spelling of 47432385 in words is "forty-seven million, four hundred thirty-two thousand, three hundred eighty-five".