47440043 has 4 divisors (see below), whose sum is σ = 54217200. Its totient is φ = 40662888.

The previous prime is 47440039. The next prime is 47440067. The reversal of 47440043 is 34004474.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 47440043 - 2² = 47440039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 47439994 and 47440021.

It is not an unprimeable number, because it can be changed into a prime (47440073) 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, 3388568 + ... + 3388581.

It is an arithmetic number, because the mean of its divisors is an integer number (13554300).

Almost surely, 2^47440043 is an apocalyptic number.

47440043 is a deficient number, since it is larger than the sum of its proper divisors (6777157).

47440043 is an equidigital number, since it uses as much as digits as its factorization.

47440043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6777156.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 47440043 is about 6887.6732646083. The cubic root of 47440043 is about 362.0053797925.

The spelling of 47440043 in words is "forty-seven million, four hundred forty thousand, forty-three".