202424421 has 8 divisors (see below), whose sum is σ = 276482304. Its totient is φ = 131658080.

The previous prime is 202424407. The next prime is 202424429. The reversal of 202424421 is 124424202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 202424421 - 2⁷ = 202424293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202424429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 822741 + ... + 822986.

It is an arithmetic number, because the mean of its divisors is an integer number (34560288).

Almost surely, 2^202424421 is an apocalyptic number.

It is an amenable number.

202424421 is a deficient number, since it is larger than the sum of its proper divisors (74057883).

202424421 is a wasteful number, since it uses less digits than its factorization.

202424421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1645771.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 202424421 is about 14227.5936475568. The cubic root of 202424421 is about 587.1570798544.

Adding to 202424421 its reverse (124424202), we get a palindrome (326848623).

The spelling of 202424421 in words is "two hundred two million, four hundred twenty-four thousand, four hundred twenty-one".