1421333430 has 64 divisors (see below), whose sum is σ = 3756181248. Its totient is φ = 341336960.

The previous prime is 1421333411. The next prime is 1421333443. The reversal of 1421333430 is 343331241.

It is a self number, because there is not a number n which added to its sum of digits gives 1421333430.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15184 + ... + 55436.

It is an arithmetic number, because the mean of its divisors is an integer number (58690332).

Almost surely, 2^1421333430 is an apocalyptic number.

1421333430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1421333430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1878090624).

1421333430 is an abundant number, since it is smaller than the sum of its proper divisors (2334847818).

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

1421333430 is a wasteful number, since it uses less digits than its factorization.

1421333430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40381.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 1421333430 is about 37700.5759902949. The cubic root of 1421333430 is about 1124.3425768801.

Adding to 1421333430 its reverse (343331241), we get a palindrome (1764664671).

The spelling of 1421333430 in words is "one billion, four hundred twenty-one million, three hundred thirty-three thousand, four hundred thirty".