47885140 has 12 divisors (see below), whose sum is σ = 100558836. Its totient is φ = 19154048.

The previous prime is 47885137. The next prime is 47885161. The reversal of 47885140 is 4158874.

It can be written as a sum of positive squares in 2 ways, for example, as 11861136 + 36024004 = 3444^2 + 6002^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47885140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1197109 + ... + 1197148.

It is an arithmetic number, because the mean of its divisors is an integer number (8379903).

Almost surely, 2^47885140 is an apocalyptic number.

It is an amenable number.

47885140 is an abundant number, since it is smaller than the sum of its proper divisors (52673696).

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

47885140 is a wasteful number, since it uses less digits than its factorization.

47885140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394266 (or 2394264 counting only the distinct ones).

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 47885140 is about 6919.9089589387. The cubic root of 47885140 is about 363.1340058279.

The spelling of 47885140 in words is "forty-seven million, eight hundred eighty-five thousand, one hundred forty".