284243025 has 48 divisors (see below), whose sum is σ = 517377600. Its totient is φ = 136550400.

The previous prime is 284243017. The next prime is 284243041. The reversal of 284243025 is 520342482.

It is not a de Polignac number, because 284243025 - 2³ = 284243017 is a prime.

It is a super-2 number, since 2×284243025² = 161588194522301250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 284242983 and 284243001.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 91701 + ... + 94749.

It is an arithmetic number, because the mean of its divisors is an integer number (10778700).

Almost surely, 2^284243025 is an apocalyptic number.

284243025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284243025 is a deficient number, since it is larger than the sum of its proper divisors (233134575).

284243025 is a wasteful number, since it uses less digits than its factorization.

284243025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3186 (or 3181 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

The square root of 284243025 is about 16859.5084447916. The cubic root of 284243025 is about 657.5012842915.

The spelling of 284243025 in words is "two hundred eighty-four million, two hundred forty-three thousand, twenty-five".