288482421 has 4 divisors (see below), whose sum is σ = 384643232. Its totient is φ = 192321612.

The previous prime is 288482393. The next prime is 288482479. The reversal of 288482421 is 124284882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 288482421 - 2⁶ = 288482357 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 288482421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (288482221) 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, 48080401 + ... + 48080406.

It is an arithmetic number, because the mean of its divisors is an integer number (96160808).

Almost surely, 2^288482421 is an apocalyptic number.

It is an amenable number.

288482421 is a deficient number, since it is larger than the sum of its proper divisors (96160811).

288482421 is an equidigital number, since it uses as much as digits as its factorization.

288482421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96160810.

The product of its digits is 65536, while the sum is 39.

The square root of 288482421 is about 16984.7702663298. The cubic root of 288482421 is about 660.7539753469.

The spelling of 288482421 in words is "two hundred eighty-eight million, four hundred eighty-two thousand, four hundred twenty-one".