4045431 has 16 divisors (see below), whose sum is σ = 5935104. Its totient is φ = 2435424.

The previous prime is 4045421. The next prime is 4045501. The reversal of 4045431 is 1345404.

It is not a de Polignac number, because 4045431 - 2⁵ = 4045399 is a prime.

It is a super-2 number, since 2×4045431² = 32731023951522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4045398 and 4045407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4045421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 730 + ... + 2936.

It is an arithmetic number, because the mean of its divisors is an integer number (370944).

Almost surely, 2^4045431 is an apocalyptic number.

4045431 is a deficient number, since it is larger than the sum of its proper divisors (1889673).

4045431 is a wasteful number, since it uses less digits than its factorization.

4045431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 4045431 is about 2011.3256822305. The cubic root of 4045431 is about 159.3388210073.

The spelling of 4045431 in words is "four million, forty-five thousand, four hundred thirty-one".