1430223140 has 12 divisors (see below), whose sum is σ = 3003468636. Its totient is φ = 572089248.

The previous prime is 1430223127. The next prime is 1430223143. The reversal of 1430223140 is 413220341.

It can be written as a sum of positive squares in 2 ways, for example, as 801116416 + 629106724 = 28304^2 + 25082^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 71511157 = 1430223140 / (1 + 4 + 3 + 0 + 2 + 2 + 3 + 1 + 4 + 0).

It is not an unprimeable number, because it can be changed into a prime (1430223143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35755559 + ... + 35755598.

It is an arithmetic number, because the mean of its divisors is an integer number (250289053).

Almost surely, 2^1430223140 is an apocalyptic number.

1430223140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430223140 is an abundant number, since it is smaller than the sum of its proper divisors (1573245496).

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

1430223140 is a wasteful number, since it uses less digits than its factorization.

1430223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71511166 (or 71511164 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1430223140 is about 37818.2910772023. The cubic root of 1430223140 is about 1126.6817684487.

Adding to 1430223140 its reverse (413220341), we get a palindrome (1843443481).

The spelling of 1430223140 in words is "one billion, four hundred thirty million, two hundred twenty-three thousand, one hundred forty".