202421416 has 16 divisors (see below), whose sum is σ = 386702100. Its totient is φ = 99300864.

The previous prime is 202421411. The next prime is 202421437. The reversal of 202421416 is 614124202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 188952516 + 13468900 = 13746^2 + 3670^2 .

It is not an unprimeable number, because it can be changed into a prime (202421411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238281 + ... + 239128.

Almost surely, 2^202421416 is an apocalyptic number.

It is an amenable number.

202421416 is a deficient number, since it is larger than the sum of its proper divisors (184280684).

202421416 is a wasteful number, since it uses less digits than its factorization.

202421416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477468 (or 477464 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 202421416 is about 14227.4880425183. The cubic root of 202421416 is about 587.1541743819.

Adding to 202421416 its reverse (614124202), we get a palindrome (816545618).

The spelling of 202421416 in words is "two hundred two million, four hundred twenty-one thousand, four hundred sixteen".