204025978 has 8 divisors (see below), whose sum is σ = 329580468. Its totient is φ = 94165824.

The previous prime is 204025967. The next prime is 204025979. The reversal of 204025978 is 879520402.

204025978 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 203148009 + 877969 = 14253^2 + 937^2 .

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 (204025979) 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, 3923551 + ... + 3923602.

Almost surely, 2^204025978 is an apocalyptic number.

204025978 is a deficient number, since it is larger than the sum of its proper divisors (125554490).

204025978 is a wasteful number, since it uses less digits than its factorization.

204025978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847168.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 204025978 is about 14283.7662400363. The cubic root of 204025978 is about 588.7015185999.

The spelling of 204025978 in words is "two hundred four million, twenty-five thousand, nine hundred seventy-eight".