1421334416 has 20 divisors (see below), whose sum is σ = 2767680000. Its totient is φ = 707094432.

The previous prime is 1421334403. The next prime is 1421334433. The reversal of 1421334416 is 6144331241.

It is a happy number.

It is a super-2 number, since 2×1421334416² = 4040383044212122112, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 220016 + ... + 226383.

It is an arithmetic number, because the mean of its divisors is an integer number (138384000).

Almost surely, 2^1421334416 is an apocalyptic number.

1421334416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1421334416 is a deficient number, since it is larger than the sum of its proper divisors (1346345584).

1421334416 is a wasteful number, since it uses less digits than its factorization.

1421334416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 446606 (or 446600 counting only the distinct ones).

The product of its digits is 6912, while the sum is 29.

The square root of 1421334416 is about 37700.5890670159. The cubic root of 1421334416 is about 1124.3428368711.

Adding to 1421334416 its reverse (6144331241), we get a palindrome (7565665657).

The spelling of 1421334416 in words is "one billion, four hundred twenty-one million, three hundred thirty-four thousand, four hundred sixteen".