1421341320 has 128 divisors (see below), whose sum is σ = 5030461440. Its totient is φ = 314392320.

The previous prime is 1421341267. The next prime is 1421341409. The reversal of 1421341320 is 231431241.

1421341320 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1421341320² = 4040422295878684800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1252 + ... + 53331.

It is an arithmetic number, because the mean of its divisors is an integer number (39300480).

Almost surely, 2^1421341320 is an apocalyptic number.

1421341320 is a gapful number since it is divisible by the number (10) 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 1421341320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515230720).

1421341320 is an abundant number, since it is smaller than the sum of its proper divisors (3609120120).

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

1421341320 is a wasteful number, since it uses less digits than its factorization.

1421341320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54635 (or 54631 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1421341320 is about 37700.6806304608. The cubic root of 1421341320 is about 1124.3446573318.

Adding to 1421341320 its reverse (231431241), we get a palindrome (1652772561).

The spelling of 1421341320 in words is "one billion, four hundred twenty-one million, three hundred forty-one thousand, three hundred twenty".