2400666 has 16 divisors (see below), whose sum is σ = 4904064. Its totient is φ = 783104.

The previous prime is 2400661. The next prime is 2400667. The reversal of 2400666 is 6660042.

It is not an unprimeable number, because it can be changed into a prime (2400661) 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, 3975 + ... + 4538.

It is an arithmetic number, because the mean of its divisors is an integer number (306504).

2^2400666 is an apocalyptic number.

2400666 is an abundant number, since it is smaller than the sum of its proper divisors (2503398).

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

2400666 is a wasteful number, since it uses less digits than its factorization.

2400666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8565.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2400666 is about 1549.4082741486. The cubic root of 2400666 is about 133.8989733806.

The spelling of 2400666 in words is "two million, four hundred thousand, six hundred sixty-six".