206313040 has 40 divisors (see below), whose sum is σ = 480692448. Its totient is φ = 82350720.

The previous prime is 206312959. The next prime is 206313067. The reversal of 206313040 is 40313602.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 206312999 and 206313017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39375 + ... + 44305.

Almost surely, 2^206313040 is an apocalyptic number.

206313040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206313040 is an abundant number, since it is smaller than the sum of its proper divisors (274379408).

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

206313040 is a wasteful number, since it uses less digits than its factorization.

206313040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5467 (or 5461 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 206313040 is about 14363.6012197499. The cubic root of 206313040 is about 590.8930648263.

Adding to 206313040 its reverse (40313602), we get a palindrome (246626642).

The spelling of 206313040 in words is "two hundred six million, three hundred thirteen thousand, forty".