47444780 has 12 divisors (see below), whose sum is σ = 99634080. Its totient is φ = 18977904.

The previous prime is 47444779. The next prime is 47444801. The reversal of 47444780 is 8744474.

It is a happy 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, 1186100 + ... + 1186139.

It is an arithmetic number, because the mean of its divisors is an integer number (8302840).

Almost surely, 2^47444780 is an apocalyptic number.

It is an amenable number.

47444780 is an abundant number, since it is smaller than the sum of its proper divisors (52189300).

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

47444780 is a wasteful number, since it uses less digits than its factorization.

47444780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2372248 (or 2372246 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 38.

The square root of 47444780 is about 6888.0171312214. The cubic root of 47444780 is about 362.0174284213.

It can be divided in two parts, 474 and 44780, that added together give a palindrome (45254).

The spelling of 47444780 in words is "forty-seven million, four hundred forty-four thousand, seven hundred eighty".