47278450 has 24 divisors (see below), whose sum is σ = 89149428. Its totient is φ = 18650880.

The previous prime is 47278433. The next prime is 47278459. The reversal of 47278450 is 5487274.

47278450 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 8602489 + 38675961 = 2933^2 + 6219^2 .

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47278459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2827 + ... + 10126.

Almost surely, 2^47278450 is an apocalyptic number.

47278450 is a deficient number, since it is larger than the sum of its proper divisors (41870978).

47278450 is a wasteful number, since it uses less digits than its factorization.

47278450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13038 (or 13033 counting only the distinct ones).

The product of its (nonzero) digits is 62720, while the sum is 37.

The square root of 47278450 is about 6875.9326640100. The cubic root of 47278450 is about 361.5938843775.

The spelling of 47278450 in words is "forty-seven million, two hundred seventy-eight thousand, four hundred fifty".