204140354 has 16 divisors (see below), whose sum is σ = 339711840. Its totient is φ = 91217760.

The previous prime is 204140329. The next prime is 204140429. The reversal of 204140354 is 453041402.

204140354 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77339 + ... + 79934.

It is an arithmetic number, because the mean of its divisors is an integer number (21231990).

Almost surely, 2^204140354 is an apocalyptic number.

204140354 is a deficient number, since it is larger than the sum of its proper divisors (135571486).

204140354 is a wasteful number, since it uses less digits than its factorization.

204140354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157345.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 204140354 is about 14287.7693850370. The cubic root of 204140354 is about 588.8115058136.

Adding to 204140354 its reverse (453041402), we get a palindrome (657181756).

The spelling of 204140354 in words is "two hundred four million, one hundred forty thousand, three hundred fifty-four".