206622040 has 16 divisors (see below), whose sum is σ = 464899680. Its totient is φ = 82648800.

The previous prime is 206622019. The next prime is 206622061. The reversal of 206622040 is 40226602.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (206622019) and next prime (206622061).

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, 2582736 + ... + 2582815.

It is an arithmetic number, because the mean of its divisors is an integer number (29056230).

Almost surely, 2^206622040 is an apocalyptic number.

206622040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206622040 is an abundant number, since it is smaller than the sum of its proper divisors (258277640).

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

206622040 is a wasteful number, since it uses less digits than its factorization.

206622040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5165562 (or 5165558 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 206622040 is about 14374.3535506819. The cubic root of 206622040 is about 591.1879159230.

Adding to 206622040 its reverse (40226602), we get a palindrome (246848642).

The spelling of 206622040 in words is "two hundred six million, six hundred twenty-two thousand, forty".