20257714 has 8 divisors (see below), whose sum is σ = 30423708. Its totient is φ = 10116480.

The previous prime is 20257711. The next prime is 20257729. The reversal of 20257714 is 41775202.

It can be written as a sum of positive squares in 2 ways, for example, as 19936225 + 321489 = 4465^2 + 567^2 .

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

It is not an unprimeable number, because it can be changed into a prime (20257711) 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, 3987 + ... + 7510.

Almost surely, 2^20257714 is an apocalyptic number.

20257714 is a deficient number, since it is larger than the sum of its proper divisors (10165994).

20257714 is a wasteful number, since it uses less digits than its factorization.

20257714 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12380.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 20257714 is about 4500.8570295000. The cubic root of 20257714 is about 272.6026950698.

The spelling of 20257714 in words is "twenty million, two hundred fifty-seven thousand, seven hundred fourteen".