47842940 has 12 divisors (see below), whose sum is σ = 100470216. Its totient is φ = 19137168.

The previous prime is 47842939. The next prime is 47842973. The reversal of 47842940 is 4924874.

47842940 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 47842894 and 47842903.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1196054 + ... + 1196093.

It is an arithmetic number, because the mean of its divisors is an integer number (8372518).

Almost surely, 2^47842940 is an apocalyptic number.

It is an amenable number.

47842940 is an abundant number, since it is smaller than the sum of its proper divisors (52627276).

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

47842940 is a wasteful number, since it uses less digits than its factorization.

47842940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2392156 (or 2392154 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 47842940 is about 6916.8591137886. The cubic root of 47842940 is about 363.0273007771.

The spelling of 47842940 in words is "forty-seven million, eight hundred forty-two thousand, nine hundred forty".