206064040 has 64 divisors (see below), whose sum is σ = 570648960. Its totient is φ = 65214720.

The previous prime is 206064031. The next prime is 206064043. The reversal of 206064040 is 40460602.

It is a super-2 number, since 2×206064040² = 84924777162243200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (206064043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24666 + ... + 31945.

It is an arithmetic number, because the mean of its divisors is an integer number (8916390).

Almost surely, 2^206064040 is an apocalyptic number.

206064040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

206064040 is an abundant number, since it is smaller than the sum of its proper divisors (364584920).

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

206064040 is a wasteful number, since it uses less digits than its factorization.

206064040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56642 (or 56638 counting only the distinct ones).

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

The square root of 206064040 is about 14354.9308601609. The cubic root of 206064040 is about 590.6552520921.

The spelling of 206064040 in words is "two hundred six million, sixty-four thousand, forty".