20186914 has 12 divisors (see below), whose sum is σ = 33283782. Its totient is φ = 9175760.

The previous prime is 20186897. The next prime is 20186917. The reversal of 20186914 is 41968102.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 19847025 + 339889 = 4455^2 + 583^2 .

It is a super-2 number, since 2×20186914² = 815022993686792, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20186917) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 41467 + ... + 41950.

Almost surely, 2^20186914 is an apocalyptic number.

20186914 is a deficient number, since it is larger than the sum of its proper divisors (13096868).

20186914 is a wasteful number, since it uses less digits than its factorization.

20186914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83441 (or 83430 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 20186914 is about 4492.9849766052. The cubic root of 20186914 is about 272.2847454209.

The spelling of 20186914 in words is "twenty million, one hundred eighty-six thousand, nine hundred fourteen".