20765214 has 64 divisors (see below), whose sum is σ = 49977600. Its totient is φ = 6368544.

The previous prime is 20765207. The next prime is 20765231. The reversal of 20765214 is 41256702.

20765214 is a `hidden beast` number, since 2 + 0 + 7 + 652 + 1 + 4 = 666.

It is a super-2 number, since 2×20765214² = 862388224931592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 37689 + ... + 38235.

It is an arithmetic number, because the mean of its divisors is an integer number (780900).

Almost surely, 2^20765214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20765214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24988800).

20765214 is an abundant number, since it is smaller than the sum of its proper divisors (29212386).

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

20765214 is a wasteful number, since it uses less digits than its factorization.

20765214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 27.

The square root of 20765214 is about 4556.8864370313. The cubic root of 20765214 is about 274.8603765050.

The spelling of 20765214 in words is "twenty million, seven hundred sixty-five thousand, two hundred fourteen".