47042345 has 32 divisors (see below), whose sum is σ = 67239936. Its totient is φ = 30916800.

The previous prime is 47042327. The next prime is 47042351. The reversal of 47042345 is 54324074.

It is not a de Polignac number, because 47042345 - 2²⁰ = 45993769 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 207122 + ... + 207348.

It is an arithmetic number, because the mean of its divisors is an integer number (2101248).

Almost surely, 2^47042345 is an apocalyptic number.

It is an amenable number.

47042345 is a deficient number, since it is larger than the sum of its proper divisors (20197591).

47042345 is a wasteful number, since it uses less digits than its factorization.

47042345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 47042345 is about 6858.7422316340. The cubic root of 47042345 is about 360.9909554393.

The spelling of 47042345 in words is "forty-seven million, forty-two thousand, three hundred forty-five".