20615414 has 8 divisors (see below), whose sum is σ = 30945288. Its totient is φ = 10300320.

The previous prime is 20615411. The next prime is 20615417. The reversal of 20615414 is 41451602.

It is an interprime number because it is at equal distance from previous prime (20615411) and next prime (20615417).

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

It is a self number, because there is not a number n which added to its sum of digits gives 20615414.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20615411) 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, 974 + ... + 6494.

It is an arithmetic number, because the mean of its divisors is an integer number (3868161).

Almost surely, 2^20615414 is an apocalyptic number.

20615414 is a deficient number, since it is larger than the sum of its proper divisors (10329874).

20615414 is a wasteful number, since it uses less digits than its factorization.

20615414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7390.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 20615414 is about 4540.4200246233. The cubic root of 20615414 is about 274.1978342857.

The spelling of 20615414 in words is "twenty million, six hundred fifteen thousand, four hundred fourteen".