1614420421 has 4 divisors (see below), whose sum is σ = 1614835872. Its totient is φ = 1614004972.

The previous prime is 1614420413. The next prime is 1614420427. The reversal of 1614420421 is 1240244161.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1614420421 - 2³ = 1614420413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1614420427) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 201841 + ... + 209686.

It is an arithmetic number, because the mean of its divisors is an integer number (403708968).

Almost surely, 2^1614420421 is an apocalyptic number.

It is an amenable number.

1614420421 is a deficient number, since it is larger than the sum of its proper divisors (415451).

1614420421 is an equidigital number, since it uses as much as digits as its factorization.

1614420421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415450.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 1614420421 is about 40179.8509330236. The cubic root of 1614420421 is about 1173.1103887185.

Adding to 1614420421 its reverse (1240244161), we get a palindrome (2854664582).

The spelling of 1614420421 in words is "one billion, six hundred fourteen million, four hundred twenty thousand, four hundred twenty-one".