47446272 has 54 divisors (see below), whose sum is σ = 136805942. Its totient is φ = 15814656.

The previous prime is 47446271. The next prime is 47446297. The reversal of 47446272 is 27264474.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 47114496 + 331776 = 6864^2 + 576^2 .

It is a super-2 number, since 2×47446272² = 4502297453395968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (47446271) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7993 + ... + 12600.

Almost surely, 2^47446272 is an apocalyptic number.

It is an amenable number.

47446272 is an abundant number, since it is smaller than the sum of its proper divisors (89359670).

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

47446272 is a wasteful number, since it uses less digits than its factorization.

47446272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20615 (or 20598 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 47446272 is about 6888.1254343980. The cubic root of 47446272 is about 362.0212231791.

The spelling of 47446272 in words is "forty-seven million, four hundred forty-six thousand, two hundred seventy-two".