4005790 has 8 divisors (see below), whose sum is σ = 7210440. Its totient is φ = 1602312.

The previous prime is 4005769. The next prime is 4005791. The reversal of 4005790 is 975004.

4005790 = 438² + 439² + ... + 457².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4005791) 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, 200280 + ... + 200299.

It is an arithmetic number, because the mean of its divisors is an integer number (901305).

Almost surely, 2^4005790 is an apocalyptic number.

4005790 is a deficient number, since it is larger than the sum of its proper divisors (3204650).

4005790 is a wasteful number, since it uses less digits than its factorization.

4005790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400586.

The product of its (nonzero) digits is 1260, while the sum is 25.

The square root of 4005790 is about 2001.4469765647. The cubic root of 4005790 is about 158.8166603716.

The spelling of 4005790 in words is "four million, five thousand, seven hundred ninety".