47845452 has 12 divisors (see below), whose sum is σ = 111639416. Its totient is φ = 15948480.

The previous prime is 47845381. The next prime is 47845487. The reversal of 47845452 is 25454874.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 47845452.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1993549 + ... + 1993572.

Almost surely, 2^47845452 is an apocalyptic number.

It is an amenable number.

47845452 is an abundant number, since it is smaller than the sum of its proper divisors (63793964).

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

47845452 is a wasteful number, since it uses less digits than its factorization.

47845452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3987128 (or 3987126 counting only the distinct ones).

The product of its digits is 179200, while the sum is 39.

The square root of 47845452 is about 6917.0406967142. The cubic root of 47845452 is about 363.0336542650.

The spelling of 47845452 in words is "forty-seven million, eight hundred forty-five thousand, four hundred fifty-two".