1421939333 has 8 divisors (see below), whose sum is σ = 1451103000. Its totient is φ = 1393037568.

The previous prime is 1421939329. The next prime is 1421939359. The reversal of 1421939333 is 3339391241.

It can be written as a sum of positive squares in 4 ways, for example, as 89908324 + 1332031009 = 9482^2 + 36497^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1421939333 - 2² = 1421939329 is a prime.

It is a super-2 number, since 2×1421939333² = 4043822933464969778, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1421939033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54488 + ... + 76241.

It is an arithmetic number, because the mean of its divisors is an integer number (181387875).

Almost surely, 2^1421939333 is an apocalyptic number.

It is an amenable number.

1421939333 is a deficient number, since it is larger than the sum of its proper divisors (29163667).

1421939333 is a wasteful number, since it uses less digits than its factorization.

1421939333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130951.

The product of its digits is 52488, while the sum is 38.

The square root of 1421939333 is about 37708.6108601205. The cubic root of 1421939333 is about 1124.5023202465.

The spelling of 1421939333 in words is "one billion, four hundred twenty-one million, nine hundred thirty-nine thousand, three hundred thirty-three".