47724120 has 64 divisors (see below), whose sum is σ = 159084000. Its totient is φ = 12726144.

The previous prime is 47724119. The next prime is 47724163. The reversal of 47724120 is 2142774.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21015 + ... + 23174.

Almost surely, 2^47724120 is an apocalyptic number.

47724120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47724120 is an abundant number, since it is smaller than the sum of its proper divisors (111359880).

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

47724120 is a wasteful number, since it uses less digits than its factorization.

47724120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44209 (or 44199 counting only the distinct ones).

The product of its (nonzero) digits is 3136, while the sum is 27.

The square root of 47724120 is about 6908.2646156614. The cubic root of 47724120 is about 362.7265203321.

Adding to 47724120 its reverse (2142774), we get a palindrome (49866894).

The spelling of 47724120 in words is "forty-seven million, seven hundred twenty-four thousand, one hundred twenty".