206412456 has 16 divisors (see below), whose sum is σ = 516031200. Its totient is φ = 68804144.

The previous prime is 206412443. The next prime is 206412469. The reversal of 206412456 is 654214602.

It is an interprime number because it is at equal distance from previous prime (206412443) and next prime (206412469).

It is a super-2 number, since 2×206412456² = 85212203983903872, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4300236 + ... + 4300283.

It is an arithmetic number, because the mean of its divisors is an integer number (32251950).

Almost surely, 2^206412456 is an apocalyptic number.

It is an amenable number.

206412456 is an abundant number, since it is smaller than the sum of its proper divisors (309618744).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

206412456 is a wasteful number, since it uses less digits than its factorization.

206412456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8600528 (or 8600524 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 206412456 is about 14367.0614949613. The cubic root of 206412456 is about 590.9879607375.

The spelling of 206412456 in words is "two hundred six million, four hundred twelve thousand, four hundred fifty-six".