4379400666 has 12 divisors (see below), whose sum is σ = 9488701482. Its totient is φ = 1459800216.

The previous prime is 4379400631. The next prime is 4379400671. The reversal of 4379400666 is 6660049734.

It can be written as a sum of positive squares in only one way, i.e., 3627050625 + 752350041 = 60225^2 + 27429^2 .

It is a super-2 number, since 2×4379400666² = 38358300386722487112, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121650001 + ... + 121650036.

Almost surely, 2^4379400666 is an apocalyptic number.

4379400666 is an abundant number, since it is smaller than the sum of its proper divisors (5109300816).

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

4379400666 is a wasteful number, since it uses less digits than its factorization.

4379400666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243300045 (or 243300042 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 45.

The square root of 4379400666 is about 66177.0403236651. The cubic root of 4379400666 is about 1636.0813473439.

The spelling of 4379400666 in words is "four billion, three hundred seventy-nine million, four hundred thousand, six hundred sixty-six".