285901429 has 4 divisors (see below), whose sum is σ = 311892480. Its totient is φ = 259910380.

The previous prime is 285901391. The next prime is 285901439. The reversal of 285901429 is 924109582.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 285901429 - 2¹¹ = 285899381 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 285901391 and 285901400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285901439) 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 3 ways as a sum of consecutive naturals, for example, 12995509 + ... + 12995530.

It is an arithmetic number, because the mean of its divisors is an integer number (77973120).

Almost surely, 2^285901429 is an apocalyptic number.

It is an amenable number.

285901429 is a deficient number, since it is larger than the sum of its proper divisors (25991051).

285901429 is a wasteful number, since it uses less digits than its factorization.

285901429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25991050.

The product of its (nonzero) digits is 51840, while the sum is 40.

The square root of 285901429 is about 16908.6199614280. The cubic root of 285901429 is about 658.7775266556. Note that the first 3 decimals are identical.

The spelling of 285901429 in words is "two hundred eighty-five million, nine hundred one thousand, four hundred twenty-nine".