4006554 has 16 divisors (see below), whose sum is σ = 8361792. Its totient is φ = 1277408.

The previous prime is 4006547. The next prime is 4006567. The reversal of 4006554 is 4556004.

4006554 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 14379 + ... + 14654.

It is an arithmetic number, because the mean of its divisors is an integer number (522612).

Almost surely, 2^4006554 is an apocalyptic number.

4006554 is an abundant number, since it is smaller than the sum of its proper divisors (4355238).

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

4006554 is a wasteful number, since it uses less digits than its factorization.

4006554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29061.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 4006554 is about 2001.6378293787. The cubic root of 4006554 is about 158.8267564421.

It can be divided in two parts, 4006 and 554, that added together give a triangular number (4560 = T₉₅).

The spelling of 4006554 in words is "four million, six thousand, five hundred fifty-four".