206028644 has 48 divisors (see below), whose sum is σ = 397716480. Its totient is φ = 92951040.

The previous prime is 206028643. The next prime is 206028653. The reversal of 206028644 is 446820602.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 206028644.

It is not an unprimeable number, because it can be changed into a prime (206028643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 376379 + ... + 376925.

It is an arithmetic number, because the mean of its divisors is an integer number (8285760).

Almost surely, 2^206028644 is an apocalyptic number.

It is an amenable number.

206028644 is a deficient number, since it is larger than the sum of its proper divisors (191687836).

206028644 is a wasteful number, since it uses less digits than its factorization.

206028644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 788 (or 786 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

The square root of 206028644 is about 14353.6979207450. The cubic root of 206028644 is about 590.6214308417.

The spelling of 206028644 in words is "two hundred six million, twenty-eight thousand, six hundred forty-four".