204547970 has 32 divisors (see below), whose sum is σ = 419126400. Its totient is φ = 71146240.

The previous prime is 204547969. The next prime is 204547979. The reversal of 204547970 is 79745402.

It is a super-2 number, since 2×204547970² = 83679744062241800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (204547979) 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 15 ways as a sum of consecutive naturals, for example, 37895 + ... + 42954.

It is an arithmetic number, because the mean of its divisors is an integer number (13097700).

Almost surely, 2^204547970 is an apocalyptic number.

204547970 is an abundant number, since it is smaller than the sum of its proper divisors (214578430).

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

204547970 is a wasteful number, since it uses less digits than its factorization.

204547970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80890.

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 204547970 is about 14302.0267794463. The cubic root of 204547970 is about 589.2031471811.

The spelling of 204547970 in words is "two hundred four million, five hundred forty-seven thousand, nine hundred seventy".