206431294 has 16 divisors (see below), whose sum is σ = 320071680. Its totient is φ = 99749880.

The previous prime is 206431273. The next prime is 206431301. The reversal of 206431294 is 492134602.

It is a happy number.

It is a super-2 number, since 2×206431294² = 85227758285028872, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55167 + ... + 58789.

It is an arithmetic number, because the mean of its divisors is an integer number (20004480).

Almost surely, 2^206431294 is an apocalyptic number.

206431294 is a deficient number, since it is larger than the sum of its proper divisors (113640386).

206431294 is a wasteful number, since it uses less digits than its factorization.

206431294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 206431294 is about 14367.7170768358. The cubic root of 206431294 is about 591.0059388071.

Adding to 206431294 its reverse (492134602), we get a palindrome (698565896).

The spelling of 206431294 in words is "two hundred six million, four hundred thirty-one thousand, two hundred ninety-four".