42846945 has 16 divisors (see below), whose sum is σ = 68640000. Its totient is φ = 22823424.

The previous prime is 42846943. The next prime is 42846961. The reversal of 42846945 is 54964824.

42846945 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42846945 - 2¹ = 42846943 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42846897 and 42846906.

It is not an unprimeable number, because it can be changed into a prime (42846941) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 17592 + ... + 19878.

It is an arithmetic number, because the mean of its divisors is an integer number (4290000).

Almost surely, 2^42846945 is an apocalyptic number.

It is an amenable number.

42846945 is a deficient number, since it is larger than the sum of its proper divisors (25793055).

42846945 is a wasteful number, since it uses less digits than its factorization.

42846945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3544.

The product of its digits is 276480, while the sum is 42.

The square root of 42846945 is about 6545.7577865363. The cubic root of 42846945 is about 349.9236432070.

The spelling of 42846945 in words is "forty-two million, eight hundred forty-six thousand, nine hundred forty-five".