285825345 has 16 divisors (see below), whose sum is σ = 492499392. Its totient is φ = 140713920.

The previous prime is 285825329. The next prime is 285825373. The reversal of 285825345 is 543528582.

It is a happy number.

It is not a de Polignac number, because 285825345 - 2⁴ = 285825329 is a prime.

It is a super-2 number, since 2×285825345² = 163392255688738050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 285825297 and 285825306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 732691 + ... + 733080.

It is an arithmetic number, because the mean of its divisors is an integer number (30781212).

Almost surely, 2^285825345 is an apocalyptic number.

It is an amenable number.

285825345 is a deficient number, since it is larger than the sum of its proper divisors (206674047).

285825345 is a wasteful number, since it uses less digits than its factorization.

285825345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465792.

The product of its digits is 384000, while the sum is 42.

The square root of 285825345 is about 16906.3699533637. The cubic root of 285825345 is about 658.7190835804.

It can be divided in two parts, 2858 and 25345, that added together give a triangular number (28203 = T₂₃₇).

The spelling of 285825345 in words is "two hundred eighty-five million, eight hundred twenty-five thousand, three hundred forty-five".