1200210440 has 256 divisors, whose sum is σ = 3350833920. Its totient is φ = 380989440.

The previous prime is 1200210437. The next prime is 1200210467. The reversal of 1200210440 is 440120021.

1200210440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11216867 + ... + 11216973.

It is an arithmetic number, because the mean of its divisors is an integer number (13089195).

Almost surely, 2^1200210440 is an apocalyptic number.

1200210440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200210440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1675416960).

1200210440 is an abundant number, since it is smaller than the sum of its proper divisors (2150623480).

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

1200210440 is a wasteful number, since it uses less digits than its factorization.

1200210440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1200210440 is about 34644.0534579890. The cubic root of 1200210440 is about 1062.7206838488.

Adding to 1200210440 its reverse (440120021), we get a palindrome (1640330461).

The spelling of 1200210440 in words is "one billion, two hundred million, two hundred ten thousand, four hundred forty".