284478401 has 8 divisors (see below), whose sum is σ = 290113704. Its totient is φ = 278853120.

The previous prime is 284478367. The next prime is 284478419. The reversal of 284478401 is 104874482.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60078001 + 224400400 = 7751^2 + 14980^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-284478401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (284478461) 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, 82961 + ... + 86321.

It is an arithmetic number, because the mean of its divisors is an integer number (36264213).

Almost surely, 2^284478401 is an apocalyptic number.

It is an amenable number.

284478401 is a deficient number, since it is larger than the sum of its proper divisors (5635303).

284478401 is a wasteful number, since it uses less digits than its factorization.

284478401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5011.

The product of its (nonzero) digits is 57344, while the sum is 38.

The square root of 284478401 is about 16866.4875122238. The cubic root of 284478401 is about 657.6827221345.

The spelling of 284478401 in words is "two hundred eighty-four million, four hundred seventy-eight thousand, four hundred one".