47143780 has 12 divisors (see below), whose sum is σ = 99001980. Its totient is φ = 18857504.

The previous prime is 47143757. The next prime is 47143793. The reversal of 47143780 is 8734174.

It can be written as a sum of positive squares in 2 ways, for example, as 14333796 + 32809984 = 3786^2 + 5728^2 .

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, 1178575 + ... + 1178614.

It is an arithmetic number, because the mean of its divisors is an integer number (8250165).

Almost surely, 2^47143780 is an apocalyptic number.

It is an amenable number.

47143780 is an abundant number, since it is smaller than the sum of its proper divisors (51858200).

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

47143780 is a wasteful number, since it uses less digits than its factorization.

47143780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2357198 (or 2357196 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 47143780 is about 6866.1328271451. The cubic root of 47143780 is about 361.2502312790.

The spelling of 47143780 in words is "forty-seven million, one hundred forty-three thousand, seven hundred eighty".