614614640 has 20 divisors (see below), whose sum is σ = 1428979224. Its totient is φ = 245845824.

The previous prime is 614614631. The next prime is 614614643. The reversal of 614614640 is 46416416.

It is a tau number, because it is divible by the number of its divisors (20).

It is a junction number, because it is equal to n+sod(n) for n = 614614597 and 614614606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (614614643) 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 3 ways as a sum of consecutive naturals, for example, 3841262 + ... + 3841421.

Almost surely, 2^614614640 is an apocalyptic number.

It is an amenable number.

614614640 is an abundant number, since it is smaller than the sum of its proper divisors (814364584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

614614640 is a wasteful number, since it uses less digits than its factorization.

614614640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7682696 (or 7682690 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 614614640 is about 24791.4227102843. The cubic root of 614614640 is about 850.2258407973.

The spelling of 614614640 in words is "six hundred fourteen million, six hundred fourteen thousand, six hundred forty".