285748130 has 16 divisors (see below), whose sum is σ = 514604664. Its totient is φ = 114241920.

The previous prime is 285748063. The next prime is 285748249. The reversal of 285748130 is 31847582.

It can be written as a sum of positive squares in 4 ways, for example, as 108139201 + 177608929 = 10399^2 + 13327^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17960 + ... + 29900.

Almost surely, 2^285748130 is an apocalyptic number.

285748130 is a deficient number, since it is larger than the sum of its proper divisors (228856534).

285748130 is a wasteful number, since it uses less digits than its factorization.

285748130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14341.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 285748130 is about 16904.0861923974. The cubic root of 285748130 is about 658.6597611354.

The spelling of 285748130 in words is "two hundred eighty-five million, seven hundred forty-eight thousand, one hundred thirty".