205440435 has 16 divisors (see below), whose sum is σ = 365227680. Its totient is φ = 109568160.

The previous prime is 205440421. The next prime is 205440449. The reversal of 205440435 is 534044502.

It is an interprime number because it is at equal distance from previous prime (205440421) and next prime (205440449).

It is not a de Polignac number, because 205440435 - 2⁶ = 205440371 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 205440399 and 205440408.

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, 760756 + ... + 761025.

It is an arithmetic number, because the mean of its divisors is an integer number (22826730).

Almost surely, 2^205440435 is an apocalyptic number.

205440435 is a deficient number, since it is larger than the sum of its proper divisors (159787245).

205440435 is a wasteful number, since it uses less digits than its factorization.

205440435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1521795 (or 1521789 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 205440435 is about 14333.1934683098. The cubic root of 205440435 is about 590.0588230157.

Adding to 205440435 its reverse (534044502), we get a palindrome (739484937).

The spelling of 205440435 in words is "two hundred five million, four hundred forty thousand, four hundred thirty-five".