1213214304 has 96 divisors (see below), whose sum is σ = 3437925120. Its totient is φ = 373463552.

The previous prime is 1213214263. The next prime is 1213214339. The reversal of 1213214304 is 4034123121.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54559 + ... + 73505.

It is an arithmetic number, because the mean of its divisors is an integer number (35811720).

Almost surely, 2^1213214304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213214304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718962560).

1213214304 is an abundant number, since it is smaller than the sum of its proper divisors (2224710816).

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

1213214304 is a wasteful number, since it uses less digits than its factorization.

1213214304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19012 (or 19004 counting only the distinct ones).

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

The square root of 1213214304 is about 34831.2259904816. The cubic root of 1213214304 is about 1066.5449753534.

Adding to 1213214304 its reverse (4034123121), we get a palindrome (5247337425).

The spelling of 1213214304 in words is "one billion, two hundred thirteen million, two hundred fourteen thousand, three hundred four".