47445132 has 48 divisors (see below), whose sum is σ = 129113600. Its totient is φ = 13554576.

The previous prime is 47445121. The next prime is 47445133. The reversal of 47445132 is 23154474.

It is a self number, because there is not a number n which added to its sum of digits gives 47445132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47445133) 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, 1648 + ... + 9879.

Almost surely, 2^47445132 is an apocalyptic number.

47445132 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

47445132 is an abundant number, since it is smaller than the sum of its proper divisors (81668468).

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

47445132 is a wasteful number, since it uses less digits than its factorization.

47445132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11555 (or 11539 counting only the distinct ones).

The product of its digits is 13440, while the sum is 30.

The square root of 47445132 is about 6888.0426827946. The cubic root of 47445132 is about 362.0183237064.

The spelling of 47445132 in words is "forty-seven million, four hundred forty-five thousand, one hundred thirty-two".