204143642 has 8 divisors (see below), whose sum is σ = 306276096. Its totient is φ = 102051612.

The previous prime is 204143623. The next prime is 204143647. The reversal of 204143642 is 246341402.

204143642 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 sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (204143647) 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, 14663 + ... + 24965.

It is an arithmetic number, because the mean of its divisors is an integer number (38284512).

Almost surely, 2^204143642 is an apocalyptic number.

204143642 is a deficient number, since it is larger than the sum of its proper divisors (102132454).

204143642 is a wasteful number, since it uses less digits than its factorization.

204143642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20212.

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204143642 is about 14287.8844480210. The cubic root of 204143642 is about 588.8146670403.

The spelling of 204143642 in words is "two hundred four million, one hundred forty-three thousand, six hundred forty-two".