20714436 has 18 divisors (see below), whose sum is σ = 52361582. Its totient is φ = 6904800.

The previous prime is 20714429. The next prime is 20714437. The reversal of 20714436 is 63441702.

It can be written as a sum of positive squares in only one way, i.e., 20196036 + 518400 = 4494^2 + 720^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (20714437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 287665 + ... + 287736.

Almost surely, 2^20714436 is an apocalyptic number.

It is an amenable number.

20714436 is an abundant number, since it is smaller than the sum of its proper divisors (31647146).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20714436 is a wasteful number, since it uses less digits than its factorization.

20714436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575411 (or 575406 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 20714436 is about 4551.3114593488. The cubic root of 20714436 is about 274.6361513161.

The spelling of 20714436 in words is "twenty million, seven hundred fourteen thousand, four hundred thirty-six".