47272144 has 10 divisors (see below), whose sum is σ = 91589810. Its totient is φ = 23636064.

The previous prime is 47272123. The next prime is 47272163. The reversal of 47272144 is 44127274.

It can be written as a sum of positive squares in only one way, i.e., 40449600 + 6822544 = 6360^2 + 2612^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1477239 + ... + 1477270.

It is an arithmetic number, because the mean of its divisors is an integer number (9158981).

Almost surely, 2^47272144 is an apocalyptic number.

It is an amenable number.

47272144 is a deficient number, since it is larger than the sum of its proper divisors (44317666).

47272144 is a wasteful number, since it uses less digits than its factorization.

47272144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2954517 (or 2954511 counting only the distinct ones).

The product of its digits is 12544, while the sum is 31.

The square root of 47272144 is about 6875.4740927444. The cubic root of 47272144 is about 361.5778071978.

The spelling of 47272144 in words is "forty-seven million, two hundred seventy-two thousand, one hundred forty-four".