205402342 has 8 divisors (see below), whose sum is σ = 318042432. Its totient is φ = 99388200.

The previous prime is 205402277. The next prime is 205402343. The reversal of 205402342 is 243204502.

205402342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205402343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1656409 + ... + 1656532.

It is an arithmetic number, because the mean of its divisors is an integer number (39755304).

Almost surely, 2^205402342 is an apocalyptic number.

205402342 is a deficient number, since it is larger than the sum of its proper divisors (112640090).

205402342 is a wasteful number, since it uses less digits than its factorization.

205402342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3312974.

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 205402342 is about 14331.8645681572. The cubic root of 205402342 is about 590.0223509679.

Adding to 205402342 its reverse (243204502), we get a palindrome (448606844).

The spelling of 205402342 in words is "two hundred five million, four hundred two thousand, three hundred forty-two".