204147474 has 16 divisors (see below), whose sum is σ = 408722112. Its totient is φ = 67977968.

The previous prime is 204147473. The next prime is 204147491. The reversal of 204147474 is 474741402.

It is a happy number.

It is a super-2 number, since 2×204147474² = 83352382281161352, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (204147473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11409 + ... + 23204.

It is an arithmetic number, because the mean of its divisors is an integer number (25545132).

Almost surely, 2^204147474 is an apocalyptic number.

204147474 is an abundant number, since it is smaller than the sum of its proper divisors (204574638).

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

204147474 is a wasteful number, since it uses less digits than its factorization.

204147474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35601.

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 204147474 is about 14288.0185470204. The cubic root of 204147474 is about 588.8183512496.

Adding to 204147474 its reverse (474741402), we get a palindrome (678888876).

The spelling of 204147474 in words is "two hundred four million, one hundred forty-seven thousand, four hundred seventy-four".