47556740 has 48 divisors (see below), whose sum is σ = 124516224. Its totient is φ = 14822400.

The previous prime is 47556739. The next prime is 47556749. The reversal of 47556740 is 4765574.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47556694 and 47556703.

It is not an unprimeable number, because it can be changed into a prime (47556749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13901 + ... + 16980.

It is an arithmetic number, because the mean of its divisors is an integer number (2594088).

Almost surely, 2^47556740 is an apocalyptic number.

It is an amenable number.

47556740 is an abundant number, since it is smaller than the sum of its proper divisors (76959484).

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

47556740 is a wasteful number, since it uses less digits than its factorization.

47556740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30908 (or 30906 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 38.

The square root of 47556740 is about 6896.1394997491. The cubic root of 47556740 is about 362.3019671420.

The spelling of 47556740 in words is "forty-seven million, five hundred fifty-six thousand, seven hundred forty".