4045931 has 4 divisors (see below), whose sum is σ = 4057152. Its totient is φ = 4034712.

The previous prime is 4045927. The next prime is 4045933. The reversal of 4045931 is 1395404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4045931 - 2² = 4045927 is a prime.

It is a super-2 number, since 2×4045931² = 32739115313522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4045931.

It is not an unprimeable number, because it can be changed into a prime (4045933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5051 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (1014288).

Almost surely, 2^4045931 is an apocalyptic number.

4045931 is a deficient number, since it is larger than the sum of its proper divisors (11221).

4045931 is a wasteful number, since it uses less digits than its factorization.

4045931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11220.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 4045931 is about 2011.4499745209. The cubic root of 4045931 is about 159.3453852958.

The spelling of 4045931 in words is "four million, forty-five thousand, nine hundred thirty-one".