285632401 has 2 divisors, whose sum is σ = 285632402. Its totient is φ = 285632400.

The previous prime is 285632371. The next prime is 285632407. The reversal of 285632401 is 104236582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 237190801 + 48441600 = 15401^2 + 6960^2 .

It is a cyclic number.

It is not a de Polignac number, because 285632401 - 2¹⁷ = 285501329 is a prime.

It is not a weakly prime, because it can be changed into another prime (285632407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142816200 + 142816201.

It is an arithmetic number, because the mean of its divisors is an integer number (142816201).

Almost surely, 2^285632401 is an apocalyptic number.

It is an amenable number.

285632401 is a deficient number, since it is larger than the sum of its proper divisors (1).

285632401 is an equidigital number, since it uses as much as digits as its factorization.

285632401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 285632401 is about 16900.6627384845. The cubic root of 285632401 is about 658.5708292867.

Adding to 285632401 its reverse (104236582), we get a palindrome (389868983).

The spelling of 285632401 in words is "two hundred eighty-five million, six hundred thirty-two thousand, four hundred one".