47420045 has 8 divisors (see below), whose sum is σ = 56964600. Its totient is φ = 37895680.

The previous prime is 47420033. The next prime is 47420057. The reversal of 47420045 is 54002474.

47420045 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47420033) and next prime (47420057).

It can be written as a sum of positive squares in 4 ways, for example, as 29560969 + 17859076 = 5437^2 + 4226^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-47420045 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 47419996 and 47420023.

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 7 ways as a sum of consecutive naturals, for example, 725 + ... + 9765.

It is an arithmetic number, because the mean of its divisors is an integer number (7120575).

Almost surely, 2^47420045 is an apocalyptic number.

It is an amenable number.

47420045 is a deficient number, since it is larger than the sum of its proper divisors (9544555).

47420045 is a wasteful number, since it uses less digits than its factorization.

47420045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10095.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 47420045 is about 6886.2213876697. The cubic root of 47420045 is about 361.9545057446.

The spelling of 47420045 in words is "forty-seven million, four hundred twenty thousand, forty-five".