1411531220 has 48 divisors (see below), whose sum is σ = 3252469248. Its totient is φ = 510303360.

The previous prime is 1411531217. The next prime is 1411531243. The reversal of 1411531220 is 221351141.

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 = 1411531192 and 1411531201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19517 + ... + 56603.

It is an arithmetic number, because the mean of its divisors is an integer number (67759776).

Almost surely, 2^1411531220 is an apocalyptic number.

1411531220 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 1411531220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1626234624).

1411531220 is an abundant number, since it is smaller than the sum of its proper divisors (1840938028).

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

1411531220 is a wasteful number, since it uses less digits than its factorization.

1411531220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37280 (or 37278 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 1411531220 is about 37570.3502778454. The cubic root of 1411531220 is about 1121.7519403146.

Adding to 1411531220 its reverse (221351141), we get a palindrome (1632882361).

The spelling of 1411531220 in words is "one billion, four hundred eleven million, five hundred thirty-one thousand, two hundred twenty".