47933640 has 64 divisors (see below), whose sum is σ = 159782400. Its totient is φ = 12782016.

The previous prime is 47933621. The next prime is 47933647. The reversal of 47933640 is 4633974.

47933640 is a `hidden beast` number, since 4 + 7 + 9 + 3 + 3 + 640 = 666.

47933640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 47933595 and 47933604.

It is not an unprimeable number, because it can be changed into a prime (47933647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21112 + ... + 23271.

It is an arithmetic number, because the mean of its divisors is an integer number (2496600).

Almost surely, 2^47933640 is an apocalyptic number.

47933640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47933640 is an abundant number, since it is smaller than the sum of its proper divisors (111848760).

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

47933640 is a wasteful number, since it uses less digits than its factorization.

47933640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44403 (or 44393 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 36.

The square root of 47933640 is about 6923.4124534076. The cubic root of 47933640 is about 363.2565633797.

The spelling of 47933640 in words is "forty-seven million, nine hundred thirty-three thousand, six hundred forty".