1214413220 has 24 divisors (see below), whose sum is σ = 2632535808. Its totient is φ = 470095200.

The previous prime is 1214413217. The next prime is 1214413231. The reversal of 1214413220 is 223144121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1214413192 and 1214413201.

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 7 ways as a sum of consecutive naturals, for example, 978746 + ... + 979985.

It is an arithmetic number, because the mean of its divisors is an integer number (109688992).

Almost surely, 2^1214413220 is an apocalyptic number.

1214413220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1214413220 is an abundant number, since it is smaller than the sum of its proper divisors (1418122588).

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

1214413220 is a wasteful number, since it uses less digits than its factorization.

1214413220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958771 (or 1958769 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 1214413220 is about 34848.4321024634. The cubic root of 1214413220 is about 1066.8961847683.

Adding to 1214413220 its reverse (223144121), we get a palindrome (1437557341).

The spelling of 1214413220 in words is "one billion, two hundred fourteen million, four hundred thirteen thousand, two hundred twenty".