20714538 has 16 divisors (see below), whose sum is σ = 44616096. Its totient is φ = 6373680.

The previous prime is 20714531. The next prime is 20714539. The reversal of 20714538 is 83541702.

It is not an unprimeable number, because it can be changed into a prime (20714531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132708 + ... + 132863.

It is an arithmetic number, because the mean of its divisors is an integer number (2788506).

Almost surely, 2^20714538 is an apocalyptic number.

20714538 is an abundant number, since it is smaller than the sum of its proper divisors (23901558).

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

20714538 is a wasteful number, since it uses less digits than its factorization.

20714538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265589.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 20714538 is about 4551.3226648964. The cubic root of 20714538 is about 274.6366020941.

The spelling of 20714538 in words is "twenty million, seven hundred fourteen thousand, five hundred thirty-eight".