47243780 has 24 divisors (see below), whose sum is σ = 99451800. Its totient is φ = 18851840.

The previous prime is 47243743. The next prime is 47243797. The reversal of 47243780 is 8734274.

It can be written as a sum of positive squares in 4 ways, for example, as 11075584 + 36168196 = 3328^2 + 6014^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 47243780.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6350 + ... + 11610.

It is an arithmetic number, because the mean of its divisors is an integer number (4143825).

Almost surely, 2^47243780 is an apocalyptic number.

It is an amenable number.

47243780 is an abundant number, since it is smaller than the sum of its proper divisors (52208020).

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

47243780 is a wasteful number, since it uses less digits than its factorization.

47243780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5719 (or 5717 counting only the distinct ones).

The product of its (nonzero) digits is 37632, while the sum is 35.

The square root of 47243780 is about 6873.4110891173. The cubic root of 47243780 is about 361.5054753483.

The spelling of 47243780 in words is "forty-seven million, two hundred forty-three thousand, seven hundred eighty".