614642431 has 8 divisors (see below), whose sum is σ = 674412480. Its totient is φ = 556656672.

The previous prime is 614642411. The next prime is 614642449. The reversal of 614642431 is 134246416.

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

It is not a de Polignac number, because 614642431 - 2¹⁹ = 614118143 is a prime.

It is a super-2 number, since 2×614642431² = 755570635971179522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 614642393 and 614642402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (614642411) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 445351 + ... + 446728.

It is an arithmetic number, because the mean of its divisors is an integer number (84301560).

Almost surely, 2^614642431 is an apocalyptic number.

614642431 is a deficient number, since it is larger than the sum of its proper divisors (59770049).

614642431 is a wasteful number, since it uses less digits than its factorization.

614642431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 892145.

The product of its digits is 13824, while the sum is 31.

The square root of 614642431 is about 24791.9832002202. The cubic root of 614642431 is about 850.2386554775.

Adding to 614642431 its reverse (134246416), we get a palindrome (748888847).

The spelling of 614642431 in words is "six hundred fourteen million, six hundred forty-two thousand, four hundred thirty-one".