284020402 has 8 divisors (see below), whose sum is σ = 426124800. Its totient is φ = 141978804.

The previous prime is 284020397. The next prime is 284020421. The reversal of 284020402 is 204020482.

284020402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2002 + ... + 23917.

It is an arithmetic number, because the mean of its divisors is an integer number (53265600).

Almost surely, 2^284020402 is an apocalyptic number.

284020402 is a deficient number, since it is larger than the sum of its proper divisors (142104398).

284020402 is a wasteful number, since it uses less digits than its factorization.

284020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31400.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 284020402 is about 16852.9048534667. The cubic root of 284020402 is about 657.3295848109.

Adding to 284020402 its reverse (204020482), we get a palindrome (488040884).

The spelling of 284020402 in words is "two hundred eighty-four million, twenty thousand, four hundred two".