204326778 has 16 divisors (see below), whose sum is σ = 409340736. Its totient is φ = 67994400.

The previous prime is 204326777. The next prime is 204326809. The reversal of 204326778 is 877623402.

It is a super-2 number, since 2×204326778² = 83498864415722568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204326777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24726 + ... + 31937.

It is an arithmetic number, because the mean of its divisors is an integer number (25583796).

Almost surely, 2^204326778 is an apocalyptic number.

204326778 is an abundant number, since it is smaller than the sum of its proper divisors (205013958).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

204326778 is a wasteful number, since it uses less digits than its factorization.

204326778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57269.

The product of its (nonzero) digits is 112896, while the sum is 39.

The square root of 204326778 is about 14294.2917977772. The cubic root of 204326778 is about 588.9906884149.

The spelling of 204326778 in words is "two hundred four million, three hundred twenty-six thousand, seven hundred seventy-eight".