1213466320 has 80 divisors (see below), whose sum is σ = 3105283392. Its totient is φ = 437319680.

The previous prime is 1213466297. The next prime is 1213466333. The reversal of 1213466320 is 236643121.

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

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

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, 93339 + ... + 105541.

Almost surely, 2^1213466320 is an apocalyptic number.

1213466320 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 1213466320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1552641696).

1213466320 is an abundant number, since it is smaller than the sum of its proper divisors (1891817072).

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

1213466320 is a wasteful number, since it uses less digits than its factorization.

1213466320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12340 (or 12334 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 1213466320 is about 34834.8434760370. The cubic root of 1213466320 is about 1066.6188199024.

The spelling of 1213466320 in words is "one billion, two hundred thirteen million, four hundred sixty-six thousand, three hundred twenty".