4045731 has 4 divisors (see below), whose sum is σ = 5394312. Its totient is φ = 2697152.

The previous prime is 4045721. The next prime is 4045763. The reversal of 4045731 is 1375404.

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 4045731 - 2⁷ = 4045603 is a prime.

It is a super-2 number, since 2×4045731² = 32735878648722, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (4045721) 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, 674286 + ... + 674291.

It is an arithmetic number, because the mean of its divisors is an integer number (1348578).

Almost surely, 2^4045731 is an apocalyptic number.

4045731 is a deficient number, since it is larger than the sum of its proper divisors (1348581).

4045731 is a wasteful number, since it uses less digits than its factorization.

4045731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348580.

The product of its (nonzero) digits is 1680, while the sum is 24.

The square root of 4045731 is about 2011.4002585264. The cubic root of 4045731 is about 159.3427596453.

The spelling of 4045731 in words is "four million, forty-five thousand, seven hundred thirty-one".