1421052304 has 120 divisors (see below), whose sum is σ = 3423683648. Its totient is φ = 559319040.

The previous prime is 1421052289. The next prime is 1421052331. The reversal of 1421052304 is 4032501241.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1391314 + ... + 1392334.

Almost surely, 2^1421052304 is an apocalyptic number.

1421052304 is a gapful number since it is divisible by the number (14) 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 1421052304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1711841824).

1421052304 is an abundant number, since it is smaller than the sum of its proper divisors (2002631344).

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

1421052304 is a wasteful number, since it uses less digits than its factorization.

1421052304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1113 (or 1090 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 1421052304 is about 37696.8474013411. The cubic root of 1421052304 is about 1124.2684439647.

Adding to 1421052304 its reverse (4032501241), we get a palindrome (5453553545).

The spelling of 1421052304 in words is "one billion, four hundred twenty-one million, fifty-two thousand, three hundred four".