4045438 has 16 divisors (see below), whose sum is σ = 6359040. Its totient is φ = 1927800.

The previous prime is 4045421. The next prime is 4045501. The reversal of 4045438 is 8345404.

It is a super-2 number, since 2×4045438² = 32731137223688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3943 + ... + 4861.

It is an arithmetic number, because the mean of its divisors is an integer number (397440).

Almost surely, 2^4045438 is an apocalyptic number.

4045438 is a deficient number, since it is larger than the sum of its proper divisors (2313602).

4045438 is a wasteful number, since it uses less digits than its factorization.

4045438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 4045438 is about 2011.3274223756. The cubic root of 4045438 is about 159.3389129111.

The spelling of 4045438 in words is "four million, forty-five thousand, four hundred thirty-eight".