206244440 has 16 divisors (see below), whose sum is σ = 464050080. Its totient is φ = 82497760.

The previous prime is 206244403. The next prime is 206244443. The reversal of 206244440 is 44442602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206244443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2578016 + ... + 2578095.

It is an arithmetic number, because the mean of its divisors is an integer number (29003130).

Almost surely, 2^206244440 is an apocalyptic number.

206244440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206244440 is an abundant number, since it is smaller than the sum of its proper divisors (257805640).

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

206244440 is a wasteful number, since it uses less digits than its factorization.

206244440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5156122 (or 5156118 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

The square root of 206244440 is about 14361.2130406871. The cubic root of 206244440 is about 590.8275660454.

The spelling of 206244440 in words is "two hundred six million, two hundred forty-four thousand, four hundred forty".