205378034 has 4 divisors (see below), whose sum is σ = 308067054. Its totient is φ = 102689016.

The previous prime is 205378027. The next prime is 205378039. The reversal of 205378034 is 430873502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 142730809 + 62647225 = 11947^2 + 7915^2 .

It is not an unprimeable number, because it can be changed into a prime (205378039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51344507 + ... + 51344510.

Almost surely, 2^205378034 is an apocalyptic number.

205378034 is a deficient number, since it is larger than the sum of its proper divisors (102689020).

205378034 is a wasteful number, since it uses less digits than its factorization.

205378034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102689019.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 205378034 is about 14331.0165026770. The cubic root of 205378034 is about 589.9990749770. Note that the first 3 decimals are identical.

The spelling of 205378034 in words is "two hundred five million, three hundred seventy-eight thousand, thirty-four".