204693970 has 16 divisors (see below), whose sum is σ = 396791640. Its totient is φ = 75579264.

The previous prime is 204693949. The next prime is 204694001. The reversal of 204693970 is 79396402.

It can be written as a sum of positive squares in 4 ways, for example, as 152695449 + 51998521 = 12357^2 + 7211^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787155 + ... + 787414.

Almost surely, 2^204693970 is an apocalyptic number.

204693970 is a deficient number, since it is larger than the sum of its proper divisors (192097670).

204693970 is a wasteful number, since it uses less digits than its factorization.

204693970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574589.

The product of its (nonzero) digits is 81648, while the sum is 40.

The square root of 204693970 is about 14307.1300406476. The cubic root of 204693970 is about 589.3432988215.

The spelling of 204693970 in words is "two hundred four million, six hundred ninety-three thousand, nine hundred seventy".