4051845 has 48 divisors (see below), whose sum is σ = 8461440. Its totient is φ = 1752192.

The previous prime is 4051843. The next prime is 4051867. The reversal of 4051845 is 5481504.

It is not a de Polignac number, because 4051845 - 2¹ = 4051843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4051843) 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 47 ways as a sum of consecutive naturals, for example, 5647 + ... + 6323.

It is an arithmetic number, because the mean of its divisors is an integer number (176280).

Almost surely, 2^4051845 is an apocalyptic number.

4051845 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4051845 is an abundant number, since it is smaller than the sum of its proper divisors (4409595).

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

4051845 is a wasteful number, since it uses less digits than its factorization.

4051845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714 (or 711 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 27.

The square root of 4051845 is about 2012.9195214911. The cubic root of 4051845 is about 159.4229867035.

The spelling of 4051845 in words is "four million, fifty-one thousand, eight hundred forty-five".