2061643200 has 84 divisors (see below), whose sum is σ = 6763923480. Its totient is φ = 549770240.

The previous prime is 2061643123. The next prime is 2061643201. The reversal of 2061643200 is 23461602.

It is a super-3 number, since 3×2061643200³ (a number of 29 digits) contains 333 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2061643201) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209955 + ... + 219554.

Almost surely, 2^2061643200 is an apocalyptic number.

2061643200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2061643200 is an abundant number, since it is smaller than the sum of its proper divisors (4702280280).

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

2061643200 is a wasteful number, since it uses less digits than its factorization.

2061643200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429534 (or 429519 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 2061643200 is about 45405.3212740533. The cubic root of 2061643200 is about 1272.7345545656.

The spelling of 2061643200 in words is "two billion, sixty-one million, six hundred forty-three thousand, two hundred".