1214206320 has 80 divisors (see below), whose sum is σ = 3769758720. Its totient is φ = 323296512.

The previous prime is 1214206303. The next prime is 1214206321. The reversal of 1214206320 is 236024121.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1214206321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171001 + ... + 177959.

It is an arithmetic number, because the mean of its divisors is an integer number (47121984).

Almost surely, 2^1214206320 is an apocalyptic number.

1214206320 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 1214206320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1884879360).

1214206320 is an abundant number, since it is smaller than the sum of its proper divisors (2555552400).

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

1214206320 is a wasteful number, since it uses less digits than its factorization.

1214206320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7702 (or 7696 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1214206320 is about 34845.4634063030. The cubic root of 1214206320 is about 1066.8355921699.

The spelling of 1214206320 in words is "one billion, two hundred fourteen million, two hundred six thousand, three hundred twenty".