614422381 has 6 divisors (see below), whose sum is σ = 652691210. Its totient is φ = 578279616.

The previous prime is 614422379. The next prime is 614422409. The reversal of 614422381 is 183224416.

It can be written as a sum of positive squares in 3 ways, for example, as 88454025 + 525968356 = 9405^2 + 22934^2 .

It is not a de Polignac number, because 614422381 - 2¹ = 614422379 is a prime.

It is a super-2 number, since 2×614422381² = 755029724547418322, 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 (614422301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1062726 + ... + 1063303.

Almost surely, 2^614422381 is an apocalyptic number.

It is an amenable number.

614422381 is a deficient number, since it is larger than the sum of its proper divisors (38268829).

614422381 is a wasteful number, since it uses less digits than its factorization.

614422381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126063 (or 2126046 counting only the distinct ones).

The product of its digits is 9216, while the sum is 31.

The square root of 614422381 is about 24787.5448764092. The cubic root of 614422381 is about 850.1371778603.

Adding to 614422381 its reverse (183224416), we get a palindrome (797646797).

The spelling of 614422381 in words is "six hundred fourteen million, four hundred twenty-two thousand, three hundred eighty-one".