47424740 has 36 divisors (see below), whose sum is σ = 109474428. Its totient is φ = 17244480.

The previous prime is 47424737. The next prime is 47424757. The reversal of 47424740 is 4742474.

47424740 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 2 ways, for example, as 17656804 + 29767936 = 4202^2 + 5456^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47424697 and 47424706.

It is an unprimeable number.

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, 7379 + ... + 12218.

Almost surely, 2^47424740 is an apocalyptic number.

It is an amenable number.

47424740 is an abundant number, since it is smaller than the sum of its proper divisors (62049688).

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

47424740 is a wasteful number, since it uses less digits than its factorization.

47424740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19628 (or 19615 counting only the distinct ones).

The product of its (nonzero) digits is 25088, while the sum is 32.

The square root of 47424740 is about 6886.5622773631. The cubic root of 47424740 is about 361.9664509063.

The spelling of 47424740 in words is "forty-seven million, four hundred twenty-four thousand, seven hundred forty".