4041999 has 24 divisors (see below), whose sum is σ = 6355440. Its totient is φ = 2460672.

The previous prime is 4041979. The next prime is 4042001. The reversal of 4041999 is 9991404.

It is not a de Polignac number, because 4041999 - 2²⁰ = 2993423 is a prime.

4041999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4041929) 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, 20847 + ... + 21039.

It is an arithmetic number, because the mean of its divisors is an integer number (264810).

Almost surely, 2^4041999 is an apocalyptic number.

4041999 is a deficient number, since it is larger than the sum of its proper divisors (2313441).

4041999 is a wasteful number, since it uses less digits than its factorization.

4041999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391 (or 388 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 36.

The square root of 4041999 is about 2010.4723325627. The cubic root of 4041999 is about 159.2937491267.

The spelling of 4041999 in words is "four million, forty-one thousand, nine hundred ninety-nine".