205037434 has 16 divisors (see below), whose sum is σ = 351697536. Its totient is φ = 87822000.

The previous prime is 205037431. The next prime is 205037471. The reversal of 205037434 is 434730502.

It is not an unprimeable number, because it can be changed into a prime (205037431) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30259 + ... + 36409.

It is an arithmetic number, because the mean of its divisors is an integer number (21981096).

Almost surely, 2^205037434 is an apocalyptic number.

205037434 is a deficient number, since it is larger than the sum of its proper divisors (146660102).

205037434 is a wasteful number, since it uses less digits than its factorization.

205037434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8541.

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 205037434 is about 14319.1282555887. The cubic root of 205037434 is about 589.6727420013.

Adding to 205037434 its reverse (434730502), we get a palindrome (639767936).

The spelling of 205037434 in words is "two hundred five million, thirty-seven thousand, four hundred thirty-four".