206448994 has 4 divisors (see below), whose sum is σ = 309673494. Its totient is φ = 103224496.

The previous prime is 206448973. The next prime is 206448997. The reversal of 206448994 is 499844602.

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., 114768369 + 91680625 = 10713^2 + 9575^2 .

It is a super-2 number, since 2×206448994² = 85242374247224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206448997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51612247 + ... + 51612250.

Almost surely, 2^206448994 is an apocalyptic number.

206448994 is a deficient number, since it is larger than the sum of its proper divisors (103224500).

206448994 is a wasteful number, since it uses less digits than its factorization.

206448994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103224499.

The product of its (nonzero) digits is 497664, while the sum is 46.

The square root of 206448994 is about 14368.3330278777. Note that the first 3 decimals coincide. The cubic root of 206448994 is about 591.0228298284.

The spelling of 206448994 in words is "two hundred six million, four hundred forty-eight thousand, nine hundred ninety-four".