204621461 has 8 divisors (see below), whose sum is σ = 223711104. Its totient is φ = 185613120.

The previous prime is 204621451. The next prime is 204621467. The reversal of 204621461 is 164126402.

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

It is a de Polignac number, because none of the positive numbers 2^k-204621461 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204621461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204621467) 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, 14996 + ... + 25181.

It is an arithmetic number, because the mean of its divisors is an integer number (27963888).

Almost surely, 2^204621461 is an apocalyptic number.

It is an amenable number.

204621461 is a deficient number, since it is larger than the sum of its proper divisors (19089643).

204621461 is a wasteful number, since it uses less digits than its factorization.

204621461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40651.

The product of its (nonzero) digits is 2304, while the sum is 26.

The square root of 204621461 is about 14304.5957999518. The cubic root of 204621461 is about 589.2737026662.

Adding to 204621461 its reverse (164126402), we get a palindrome (368747863).

The spelling of 204621461 in words is "two hundred four million, six hundred twenty-one thousand, four hundred sixty-one".