1200323630 has 96 divisors (see below), whose sum is σ = 2493590400. Its totient is φ = 415134720.

The previous prime is 1200323611. The next prime is 1200323633. The reversal of 1200323630 is 363230021.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200323633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2771894 + ... + 2772326.

It is an arithmetic number, because the mean of its divisors is an integer number (25974900).

Almost surely, 2^1200323630 is an apocalyptic number.

1200323630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1200323630 is an abundant number, since it is smaller than the sum of its proper divisors (1293266770).

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

1200323630 is a wasteful number, since it uses less digits than its factorization.

1200323630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 1200323630 is about 34645.6870331647. The cubic root of 1200323630 is about 1062.7540906496.

Adding to 1200323630 its reverse (363230021), we get a palindrome (1563553651).

The spelling of 1200323630 in words is "one billion, two hundred million, three hundred twenty-three thousand, six hundred thirty".