47055940 has 12 divisors (see below), whose sum is σ = 98817516. Its totient is φ = 18822368.

The previous prime is 47055857. The next prime is 47055941. The reversal of 47055940 is 4955074.

It can be written as a sum of positive squares in 2 ways, for example, as 35236096 + 11819844 = 5936^2 + 3438^2 .

It is a super-2 number, since 2×47055940² = 4428522978567200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47055896 and 47055905.

It is not an unprimeable number, because it can be changed into a prime (47055941) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1176379 + ... + 1176418.

It is an arithmetic number, because the mean of its divisors is an integer number (8234793).

Almost surely, 2^47055940 is an apocalyptic number.

It is an amenable number.

47055940 is an abundant number, since it is smaller than the sum of its proper divisors (51761576).

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

47055940 is a wasteful number, since it uses less digits than its factorization.

47055940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2352806 (or 2352804 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 47055940 is about 6859.7332309646. The cubic root of 47055940 is about 361.0257269439.

The spelling of 47055940 in words is "forty-seven million, fifty-five thousand, nine hundred forty".