204478162 has 16 divisors (see below), whose sum is σ = 353212992. Its totient is φ = 86963760.

The previous prime is 204478069. The next prime is 204478181. The reversal of 204478162 is 261874402.

It is a happy number.

It is a super-2 number, since 2×204478162² = 83622637469796488, which contains 22 as substring.

It is an unprimeable number.

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, 53913 + ... + 57580.

It is an arithmetic number, because the mean of its divisors is an integer number (22075812).

Almost surely, 2^204478162 is an apocalyptic number.

204478162 is a deficient number, since it is larger than the sum of its proper divisors (148734830).

204478162 is a wasteful number, since it uses less digits than its factorization.

204478162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111633.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 204478162 is about 14299.5860779255. The cubic root of 204478162 is about 589.1361119306.

The spelling of 204478162 in words is "two hundred four million, four hundred seventy-eight thousand, one hundred sixty-two".