206348440 has 16 divisors (see below), whose sum is σ = 464284080. Its totient is φ = 82539360.

The previous prime is 206348413. The next prime is 206348477. The reversal of 206348440 is 44843602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2579316 + ... + 2579395.

It is an arithmetic number, because the mean of its divisors is an integer number (29017755).

Almost surely, 2^206348440 is an apocalyptic number.

206348440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206348440 is an abundant number, since it is smaller than the sum of its proper divisors (257935640).

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

206348440 is a wasteful number, since it uses less digits than its factorization.

206348440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5158722 (or 5158718 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 206348440 is about 14364.8334483906. The cubic root of 206348440 is about 590.9268588095.

The spelling of 206348440 in words is "two hundred six million, three hundred forty-eight thousand, four hundred forty".