4045995 has 24 divisors (see below), whose sum is σ = 7166016. Its totient is φ = 2110848.

The previous prime is 4045973. The next prime is 4045997. The reversal of 4045995 is 5995404.

It is not a de Polignac number, because 4045995 - 2⁵ = 4045963 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (4045997) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1159 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (298584).

Almost surely, 2^4045995 is an apocalyptic number.

4045995 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4045995 is a deficient number, since it is larger than the sum of its proper divisors (3120021).

4045995 is a wasteful number, since it uses less digits than its factorization.

4045995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1971 (or 1968 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 36.

The square root of 4045995 is about 2011.4658833796. The cubic root of 4045995 is about 159.3462254857.

The spelling of 4045995 in words is "four million, forty-five thousand, nine hundred ninety-five".