1430421320 has 32 divisors (see below), whose sum is σ = 3243801600. Its totient is φ = 567661248.

The previous prime is 1430421319. The next prime is 1430421323. The reversal of 1430421320 is 231240341.

It is a super-2 number, since 2×1430421320² = 4092210305421084800, which contains 22 as substring.

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 = 1430421292 and 1430421301.

It is not an unprimeable number, because it can be changed into a prime (1430421323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135710 + ... + 145869.

It is an arithmetic number, because the mean of its divisors is an integer number (101368800).

Almost surely, 2^1430421320 is an apocalyptic number.

1430421320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430421320 is an abundant number, since it is smaller than the sum of its proper divisors (1813380280).

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

1430421320 is a wasteful number, since it uses less digits than its factorization.

1430421320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 281717 (or 281713 counting only the distinct ones).

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

The square root of 1430421320 is about 37820.9111471419. The cubic root of 1430421320 is about 1126.7338058952.

Adding to 1430421320 its reverse (231240341), we get a palindrome (1661661661).

The spelling of 1430421320 in words is "one billion, four hundred thirty million, four hundred twenty-one thousand, three hundred twenty".