4026666 has 16 divisors (see below), whose sum is σ = 9203904. Its totient is φ = 1150464.

The previous prime is 4026653. The next prime is 4026667. The reversal of 4026666 is 6666204.

It is an Ulam number.

4026666 is a modest number, since divided by 6666 gives 402 as remainder.

It is not an unprimeable number, because it can be changed into a prime (4026667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47895 + ... + 47978.

It is an arithmetic number, because the mean of its divisors is an integer number (575244).

Almost surely, 2^4026666 is an apocalyptic number.

4026666 is an abundant number, since it is smaller than the sum of its proper divisors (5177238).

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

4026666 is a wasteful number, since it uses less digits than its factorization.

4026666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95885.

The product of its (nonzero) digits is 10368, while the sum is 30.

The square root of 4026666 is about 2006.6554263251. The cubic root of 4026666 is about 159.0920711950.

The spelling of 4026666 in words is "four million, twenty-six thousand, six hundred sixty-six".