614340421 has 4 divisors (see below), whose sum is σ = 615872844. Its totient is φ = 612808000.

The previous prime is 614340413. The next prime is 614340427. The reversal of 614340421 is 124043416.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 301404321 + 312936100 = 17361^2 + 17690^2 .

It is a cyclic number.

It is not a de Polignac number, because 614340421 - 2³ = 614340413 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 (614340427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765610 + ... + 766411.

It is an arithmetic number, because the mean of its divisors is an integer number (153968211).

Almost surely, 2^614340421 is an apocalyptic number.

It is an amenable number.

614340421 is a deficient number, since it is larger than the sum of its proper divisors (1532423).

614340421 is a wasteful number, since it uses less digits than its factorization.

614340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532422.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 614340421 is about 24785.8915716179. The cubic root of 614340421 is about 850.0993752326.

Adding to 614340421 its reverse (124043416), we get a palindrome (738383837).

It can be divided in two parts, 6143 and 40421, that added together give a palindrome (46564).

The spelling of 614340421 in words is "six hundred fourteen million, three hundred forty thousand, four hundred twenty-one".