284038925 has 18 divisors (see below), whose sum is σ = 359630442. Its totient is φ = 222462240.

The previous prime is 284038919. The next prime is 284038943. The reversal of 284038925 is 529830482.

It can be written as a sum of positive squares in 3 ways, for example, as 36228361 + 247810564 = 6019^2 + 15742^2 .

It is not a de Polignac number, because 284038925 - 2⁶ = 284038861 is a prime.

It is a super-2 number, since 2×284038925² = 161356221830311250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 613244 + ... + 613706.

It is an arithmetic number, because the mean of its divisors is an integer number (19979469).

Almost surely, 2^284038925 is an apocalyptic number.

284038925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

284038925 is a deficient number, since it is larger than the sum of its proper divisors (75591517).

284038925 is an frugal number, since it uses more digits than its factorization.

284038925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 41.

The square root of 284038925 is about 16853.4543936844. The cubic root of 284038925 is about 657.3438742200.

The spelling of 284038925 in words is "two hundred eighty-four million, thirty-eight thousand, nine hundred twenty-five".