202401216 has 42 divisors (see below), whose sum is σ = 580148192. Its totient is φ = 67466880.

The previous prime is 202401203. The next prime is 202401217. The reversal of 202401216 is 612104202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202401217) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 175120 + ... + 176271.

Almost surely, 2^202401216 is an apocalyptic number.

It is an amenable number.

202401216 is an abundant number, since it is smaller than the sum of its proper divisors (377746976).

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

202401216 is a wasteful number, since it uses less digits than its factorization.

202401216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351409 (or 351396 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 202401216 is about 14226.7781313971. The cubic root of 202401216 is about 587.1346426724.

Adding to 202401216 its reverse (612104202), we get a palindrome (814505418).

The spelling of 202401216 in words is "two hundred two million, four hundred one thousand, two hundred sixteen".