205374394 has 4 divisors (see below), whose sum is σ = 308061594. Its totient is φ = 102687196.

The previous prime is 205374347. The next prime is 205374413. The reversal of 205374394 is 493473502.

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., 110565225 + 94809169 = 10515^2 + 9737^2 .

It is a super-3 number, since 3×205374394³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51343597 + ... + 51343600.

Almost surely, 2^205374394 is an apocalyptic number.

205374394 is a deficient number, since it is larger than the sum of its proper divisors (102687200).

205374394 is a wasteful number, since it uses less digits than its factorization.

205374394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102687199.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 205374394 is about 14330.8895048423. The cubic root of 205374394 is about 589.9955893570.

The spelling of 205374394 in words is "two hundred five million, three hundred seventy-four thousand, three hundred ninety-four".