1200644214 has 64 divisors (see below), whose sum is σ = 2999918592. Its totient is φ = 311220000.

The previous prime is 1200644209. The next prime is 1200644231. The reversal of 1200644214 is 4124460021.

It is a happy number.

It is a super-2 number, since 2×1200644214² = 2883093057223355592, which contains 22 as substring.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 250339 + ... + 255089.

It is an arithmetic number, because the mean of its divisors is an integer number (46873728).

Almost surely, 2^1200644214 is an apocalyptic number.

1200644214 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1200644214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1499959296).

1200644214 is an abundant number, since it is smaller than the sum of its proper divisors (1799274378).

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

1200644214 is a wasteful number, since it uses less digits than its factorization.

1200644214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5321.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1200644214 is about 34650.3133319166. The cubic root of 1200644214 is about 1062.8486961436.

The spelling of 1200644214 in words is "one billion, two hundred million, six hundred forty-four thousand, two hundred fourteen".