286490925 has 72 divisors (see below), whose sum is σ = 608252736. Its totient is φ = 130947840.

The previous prime is 286490923. The next prime is 286490951. The reversal of 286490925 is 529094682.

It is not a de Polignac number, because 286490925 - 2¹ = 286490923 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (286490923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 39157 + ... + 45893.

Almost surely, 2^286490925 is an apocalyptic number.

286490925 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

286490925 is an abundant number, since it is smaller than the sum of its proper divisors (321761811).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

286490925 is an equidigital number, since it uses as much as digits as its factorization.

286490925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6769 (or 6752 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 45.

The square root of 286490925 is about 16926.0428039161. The cubic root of 286490925 is about 659.2299904234.

The spelling of 286490925 in words is "two hundred eighty-six million, four hundred ninety thousand, nine hundred twenty-five".