47339940 has 24 divisors (see below), whose sum is σ = 132552000. Its totient is φ = 12623968.

The previous prime is 47339921. The next prime is 47340011. The reversal of 47339940 is 4993374.

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, 394440 + ... + 394559.

It is an arithmetic number, because the mean of its divisors is an integer number (5523000).

Almost surely, 2^47339940 is an apocalyptic number.

It is an amenable number.

47339940 is an abundant number, since it is smaller than the sum of its proper divisors (85212060).

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

47339940 is a wasteful number, since it uses less digits than its factorization.

47339940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 789011 (or 789009 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 39.

The square root of 47339940 is about 6880.4026044992. The cubic root of 47339940 is about 361.7505785698.

The spelling of 47339940 in words is "forty-seven million, three hundred thirty-nine thousand, nine hundred forty".