206910464 has 22 divisors (see below), whose sum is σ = 413620914. Its totient is φ = 103454720.

The previous prime is 206910433. The next prime is 206910467. The reversal of 206910464 is 464019602.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 189337600 + 17572864 = 13760^2 + 4192^2 .

It is a super-2 number, since 2×206910464² = 85623880225390592, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 206910464.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206910467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100007 + ... + 102054.

Almost surely, 2^206910464 is an apocalyptic number.

It is an amenable number.

206910464 is a deficient number, since it is larger than the sum of its proper divisors (206710450).

206910464 is an equidigital number, since it uses as much as digits as its factorization.

206910464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202081 (or 202063 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 206910464 is about 14384.3826422965. The cubic root of 206910464 is about 591.4628680453.

The spelling of 206910464 in words is "two hundred six million, nine hundred ten thousand, four hundred sixty-four".