4006458 has 24 divisors (see below), whose sum is σ = 9191988. Its totient is φ = 1256832.

The previous prime is 4006451. The next prime is 4006463. The reversal of 4006458 is 8546004.

4006458 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 3448449 + 558009 = 1857^2 + 747^2 .

It is not an unprimeable number, because it can be changed into a prime (4006451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6241 + ... + 6852.

Almost surely, 2^4006458 is an apocalyptic number.

4006458 is an abundant number, since it is smaller than the sum of its proper divisors (5185530).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4006458 is a wasteful number, since it uses less digits than its factorization.

4006458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13118 (or 13115 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 4006458 is about 2001.6138488730. The cubic root of 4006458 is about 158.8254878964.

The spelling of 4006458 in words is "four million, six thousand, four hundred fifty-eight".