1334431220 has 12 divisors (see below), whose sum is σ = 2802305604. Its totient is φ = 533772480.

The previous prime is 1334431213. The next prime is 1334431247. The reversal of 1334431220 is 221344331.

It can be written as a sum of positive squares in 2 ways, for example, as 958769296 + 375661924 = 30964^2 + 19382^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33360761 + ... + 33360800.

It is an arithmetic number, because the mean of its divisors is an integer number (233525467).

Almost surely, 2^1334431220 is an apocalyptic number.

1334431220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1334431220 is an abundant number, since it is smaller than the sum of its proper divisors (1467874384).

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

1334431220 is a wasteful number, since it uses less digits than its factorization.

1334431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66721570 (or 66721568 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1334431220 is about 36529.8675059190. The cubic root of 1334431220 is about 1100.9444285780.

Adding to 1334431220 its reverse (221344331), we get a palindrome (1555775551).

The spelling of 1334431220 in words is "one billion, three hundred thirty-four million, four hundred thirty-one thousand, two hundred twenty".