202428289 has 8 divisors (see below), whose sum is σ = 231456960. Its totient is φ = 173427216.

The previous prime is 202428287. The next prime is 202428293. The reversal of 202428289 is 982824202.

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 202428289 - 2¹ = 202428287 is a prime.

It is not an unprimeable number, because it can be changed into a prime (202428287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12447 + ... + 23659.

It is an arithmetic number, because the mean of its divisors is an integer number (28932120).

Almost surely, 2^202428289 is an apocalyptic number.

It is an amenable number.

202428289 is a deficient number, since it is larger than the sum of its proper divisors (29028671).

202428289 is a wasteful number, since it uses less digits than its factorization.

202428289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13799.

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 202428289 is about 14227.7295799435. The cubic root of 202428289 is about 587.1608197015.

The spelling of 202428289 in words is "two hundred two million, four hundred twenty-eight thousand, two hundred eighty-nine".