16380212 has 6 divisors (see below), whose sum is σ = 28665378. Its totient is φ = 8190104.

The previous prime is 16380191. The next prime is 16380253. The reversal of 16380212 is 21208361.

It can be written as a sum of positive squares in only one way, i.e., 10407076 + 5973136 = 3226^2 + 2444^2 .

It is a super-2 number, since 2×16380212² = 536622690329888, 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, 2047523 + ... + 2047530.

It is an arithmetic number, because the mean of its divisors is an integer number (4777563).

Almost surely, 2^16380212 is an apocalyptic number.

It is an amenable number.

16380212 is a deficient number, since it is larger than the sum of its proper divisors (12285166).

16380212 is a wasteful number, since it uses less digits than its factorization.

16380212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4095057 (or 4095055 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 16380212 is about 4047.2474596941. The cubic root of 16380212 is about 253.9645929938.

Adding to 16380212 its reverse (21208361), we get a palindrome (37588573).

The spelling of 16380212 in words is "sixteen million, three hundred eighty thousand, two hundred twelve".