206246040 has 512 divisors, whose sum is σ = 888330240. Its totient is φ = 36864000.

The previous prime is 206246039. The next prime is 206246041. The reversal of 206246040 is 40642602.

It is an interprime number because it is at equal distance from previous prime (206246039) and next prime (206246041).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 206246040.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206246041) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2041990 + ... + 2042090.

It is an arithmetic number, because the mean of its divisors is an integer number (1735020).

Almost surely, 2^206246040 is an apocalyptic number.

206246040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 206246040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (444165120).

206246040 is an abundant number, since it is smaller than the sum of its proper divisors (682084200).

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

206246040 is a wasteful number, since it uses less digits than its factorization.

206246040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 159 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 206246040 is about 14361.2687461798. The cubic root of 206246040 is about 590.8290938791.

Adding to 206246040 its reverse (40642602), we get a palindrome (246888642).

The spelling of 206246040 in words is "two hundred six million, two hundred forty-six thousand, forty".