16220084 has 6 divisors (see below), whose sum is σ = 28385154. Its totient is φ = 8110040.

The previous prime is 16220081. The next prime is 16220093. The reversal of 16220084 is 48002261.

It can be written as a sum of positive squares in only one way, i.e., 9859600 + 6360484 = 3140^2 + 2522^2 .

It is a super-2 number, since 2×16220084² = 526182249934112, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16220081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2027507 + ... + 2027514.

It is an arithmetic number, because the mean of its divisors is an integer number (4730859).

Almost surely, 2^16220084 is an apocalyptic number.

It is an amenable number.

16220084 is a deficient number, since it is larger than the sum of its proper divisors (12165070).

16220084 is a wasteful number, since it uses less digits than its factorization.

16220084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4055025 (or 4055023 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 16220084 is about 4027.4165416555. The cubic root of 16220084 is about 253.1343212337.

The spelling of 16220084 in words is "sixteen million, two hundred twenty thousand, eighty-four".