1421330352 has 80 divisors (see below), whose sum is σ = 3990682080. Its totient is φ = 433299456.

The previous prime is 1421330329. The next prime is 1421330353. The reversal of 1421330352 is 2530331241.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1421330353) 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 15 ways as a sum of consecutive naturals, for example, 57568 + ... + 78464.

It is an arithmetic number, because the mean of its divisors is an integer number (49883526).

Almost surely, 2^1421330352 is an apocalyptic number.

1421330352 is a gapful number since it is divisible by the number (12) 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 1421330352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1995341040).

1421330352 is an abundant number, since it is smaller than the sum of its proper divisors (2569351728).

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

1421330352 is a wasteful number, since it uses less digits than its factorization.

1421330352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21030 (or 21024 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1421330352 is about 37700.5351686153. The cubic root of 1421330352 is about 1124.3417652646.

Adding to 1421330352 its reverse (2530331241), we get a palindrome (3951661593).

The spelling of 1421330352 in words is "one billion, four hundred twenty-one million, three hundred thirty thousand, three hundred fifty-two".