20216702 has 16 divisors (see below), whose sum is σ = 33152112. Its totient is φ = 9169920.

The previous prime is 20216699. The next prime is 20216759. The reversal of 20216702 is 20761202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16958 + ... + 18110.

It is an arithmetic number, because the mean of its divisors is an integer number (2072007).

Almost surely, 2^20216702 is an apocalyptic number.

20216702 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20216702 is a deficient number, since it is larger than the sum of its proper divisors (12935410).

20216702 is a wasteful number, since it uses less digits than its factorization.

20216702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1963.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 20216702 is about 4496.2987000421. The cubic root of 20216702 is about 272.4186082425.

Adding to 20216702 its reverse (20761202), we get a palindrome (40977904).

The spelling of 20216702 in words is "twenty million, two hundred sixteen thousand, seven hundred two".