47666740 has 36 divisors (see below), whose sum is σ = 110033028. Its totient is φ = 17332480.

The previous prime is 47666719. The next prime is 47666753. The reversal of 47666740 is 4766674.

It can be written as a sum of positive squares in 2 ways, for example, as 11329956 + 36336784 = 3366^2 + 6028^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47666693 and 47666702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7429 + ... + 12268.

It is an arithmetic number, because the mean of its divisors is an integer number (3056473).

Almost surely, 2^47666740 is an apocalyptic number.

It is an amenable number.

47666740 is an abundant number, since it is smaller than the sum of its proper divisors (62366288).

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

47666740 is a wasteful number, since it uses less digits than its factorization.

47666740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19728 (or 19715 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 47666740 is about 6904.1103699173. The cubic root of 47666740 is about 362.5810900636.

The spelling of 47666740 in words is "forty-seven million, six hundred sixty-six thousand, seven hundred forty".