20276216 has 8 divisors (see below), whose sum is σ = 38017920. Its totient is φ = 10138104.

The previous prime is 20276209. The next prime is 20276227. The reversal of 20276216 is 61267202.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×20276216² = 822249870557312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1267256 + ... + 1267271.

It is an arithmetic number, because the mean of its divisors is an integer number (4752240).

Almost surely, 2^20276216 is an apocalyptic number.

It is an amenable number.

20276216 is a deficient number, since it is larger than the sum of its proper divisors (17741704).

20276216 is a wasteful number, since it uses less digits than its factorization.

20276216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2534533 (or 2534529 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 20276216 is about 4502.9119467296. The cubic root of 20276216 is about 272.6856619884.

The spelling of 20276216 in words is "twenty million, two hundred seventy-six thousand, two hundred sixteen".