20283216 has 20 divisors (see below), whose sum is σ = 52398432. Its totient is φ = 6761056.

The previous prime is 20283199. The next prime is 20283223. The reversal of 20283216 is 61238202.

It is a super-2 number, since 2×20283216² = 822817702605312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211236 + ... + 211331.

Almost surely, 2^20283216 is an apocalyptic number.

It is an amenable number.

20283216 is an abundant number, since it is smaller than the sum of its proper divisors (32115216).

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

20283216 is a wasteful number, since it uses less digits than its factorization.

20283216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422578 (or 422572 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 20283216 is about 4503.6891544599. The cubic root of 20283216 is about 272.7170383230.

The spelling of 20283216 in words is "twenty million, two hundred eighty-three thousand, two hundred sixteen".