1203400666 has 24 divisors (see below), whose sum is σ = 2000116800. Its totient is φ = 542492496.

The previous prime is 1203400637. The next prime is 1203400699. The reversal of 1203400666 is 6660043021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26866 + ... + 55933.

It is an arithmetic number, because the mean of its divisors is an integer number (83338200).

Almost surely, 2^1203400666 is an apocalyptic number.

1203400666 is a deficient number, since it is larger than the sum of its proper divisors (796716134).

1203400666 is a wasteful number, since it uses less digits than its factorization.

1203400666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82870 (or 82857 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1203400666 is about 34690.0658114106. The cubic root of 1203400666 is about 1063.6614410099.

Adding to 1203400666 its reverse (6660043021), we get a palindrome (7863443687).

The spelling of 1203400666 in words is "one billion, two hundred three million, four hundred thousand, six hundred sixty-six".