284402121 has 4 divisors (see below), whose sum is σ = 379202832. Its totient is φ = 189601412.

The previous prime is 284402119. The next prime is 284402141. The reversal of 284402121 is 121204482.

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 a cyclic number.

It is not a de Polignac number, because 284402121 - 2¹ = 284402119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 284402091 and 284402100.

It is not an unprimeable number, because it can be changed into a prime (284402141) 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, 47400351 + ... + 47400356.

It is an arithmetic number, because the mean of its divisors is an integer number (94800708).

Almost surely, 2^284402121 is an apocalyptic number.

It is an amenable number.

284402121 is a deficient number, since it is larger than the sum of its proper divisors (94800711).

284402121 is an equidigital number, since it uses as much as digits as its factorization.

284402121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94800710.

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 284402121 is about 16864.2260717769. The cubic root of 284402121 is about 657.6239332276.

The spelling of 284402121 in words is "two hundred eighty-four million, four hundred two thousand, one hundred twenty-one".