204161430 has 32 divisors (see below), whose sum is σ = 534532608. Its totient is φ = 49493600.

The previous prime is 204161411. The next prime is 204161431. The reversal of 204161430 is 34161402.

It is a junction number, because it is equal to n+sod(n) for n = 204161397 and 204161406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204161431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 309006 + ... + 309665.

It is an arithmetic number, because the mean of its divisors is an integer number (16704144).

Almost surely, 2^204161430 is an apocalyptic number.

204161430 is an abundant number, since it is smaller than the sum of its proper divisors (330371178).

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

204161430 is a wasteful number, since it uses less digits than its factorization.

204161430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618692.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 204161430 is about 14288.5069198989. The cubic root of 204161430 is about 588.8317686116.

The spelling of 204161430 in words is "two hundred four million, one hundred sixty-one thousand, four hundred thirty".