20138914 has 8 divisors (see below), whose sum is σ = 31985388. Its totient is φ = 9477120.

The previous prime is 20138903. The next prime is 20138939. The reversal of 20138914 is 41983102.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18966025 + 1172889 = 4355^2 + 1083^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 296127 + ... + 296194.

Almost surely, 2^20138914 is an apocalyptic number.

20138914 is a deficient number, since it is larger than the sum of its proper divisors (11846474).

20138914 is a wasteful number, since it uses less digits than its factorization.

20138914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592340.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 20138914 is about 4487.6401370876. The cubic root of 20138914 is about 272.0687632520.

The spelling of 20138914 in words is "twenty million, one hundred thirty-eight thousand, nine hundred fourteen".