1214813280 has 96 divisors (see below), whose sum is σ = 3860698464. Its totient is φ = 321069056.

The previous prime is 1214813273. The next prime is 1214813309. The reversal of 1214813280 is 823184121.

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

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 43042 + ... + 65438.

It is an arithmetic number, because the mean of its divisors is an integer number (40215609).

Almost surely, 2^1214813280 is an apocalyptic number.

1214813280 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 1214813280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1930349232).

1214813280 is an abundant number, since it is smaller than the sum of its proper divisors (2645885184).

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

1214813280 is a wasteful number, since it uses less digits than its factorization.

1214813280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22528 (or 22520 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 30.

The square root of 1214813280 is about 34854.1716298064. The cubic root of 1214813280 is about 1067.0133265616.

The spelling of 1214813280 in words is "one billion, two hundred fourteen million, eight hundred thirteen thousand, two hundred eighty".