20414986 has 8 divisors (see below), whose sum is σ = 30662244. Its totient is φ = 10194240.

The previous prime is 20414983. The next prime is 20414993. The reversal of 20414986 is 68941402.

It can be written as a sum of positive squares in 2 ways, for example, as 18326961 + 2088025 = 4281^2 + 1445^2 .

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

It is a super-4 number, since 4×20414986⁴ (a number of 30 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (20414983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4575 + ... + 7858.

Almost surely, 2^20414986 is an apocalyptic number.

20414986 is a deficient number, since it is larger than the sum of its proper divisors (10247258).

20414986 is a wasteful number, since it uses less digits than its factorization.

20414986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13256.

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 20414986 is about 4518.2945897761. The cubic root of 20414986 is about 273.3063331780.

The spelling of 20414986 in words is "twenty million, four hundred fourteen thousand, nine hundred eighty-six".