206631412 has 24 divisors (see below), whose sum is σ = 392049000. Its totient is φ = 94724736.

The previous prime is 206631407. The next prime is 206631457. The reversal of 206631412 is 214136602.

206631412 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 19324816 + 187306596 = 4396^2 + 13686^2 .

It is a super-2 number, since 2×206631412² = 85393080850227488, which contains 22 as substring.

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, 5587 + ... + 21082.

It is an arithmetic number, because the mean of its divisors is an integer number (16335375).

Almost surely, 2^206631412 is an apocalyptic number.

It is an amenable number.

206631412 is a deficient number, since it is larger than the sum of its proper divisors (185417588).

206631412 is a wasteful number, since it uses less digits than its factorization.

206631412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26835 (or 26833 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 206631412 is about 14374.6795442542. The cubic root of 206631412 is about 591.1968541908.

The spelling of 206631412 in words is "two hundred six million, six hundred thirty-one thousand, four hundred twelve".