20227916 has 6 divisors (see below), whose sum is σ = 35398860. Its totient is φ = 10113956.

The previous prime is 20227901. The next prime is 20227919. The reversal of 20227916 is 61972202.

It is not an unprimeable number, because it can be changed into a prime (20227919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2528486 + ... + 2528493.

It is an arithmetic number, because the mean of its divisors is an integer number (5899810).

Almost surely, 2^20227916 is an apocalyptic number.

It is an amenable number.

20227916 is a deficient number, since it is larger than the sum of its proper divisors (15170944).

20227916 is a wasteful number, since it uses less digits than its factorization.

20227916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056983 (or 5056981 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20227916 is about 4497.5455528544. The cubic root of 20227916 is about 272.4689682139.

The spelling of 20227916 in words is "twenty million, two hundred twenty-seven thousand, nine hundred sixteen".