4006549466 has 4 divisors (see below), whose sum is σ = 6009824202. Its totient is φ = 2003274732.

The previous prime is 4006549453. The next prime is 4006549471. The reversal of 4006549466 is 6649456004.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3414649225 + 591900241 = 58435^2 + 24329^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1001637365 + ... + 1001637368.

Almost surely, 2^4006549466 is an apocalyptic number.

4006549466 is a deficient number, since it is larger than the sum of its proper divisors (2003274736).

4006549466 is a wasteful number, since it uses less digits than its factorization.

4006549466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003274735.

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 4006549466 is about 63297.3101008250. The cubic root of 4006549466 is about 1588.2669653024.

The spelling of 4006549466 in words is "four billion, six million, five hundred forty-nine thousand, four hundred sixty-six".