2051867200 has 42 divisors (see below), whose sum is σ = 5048879666. Its totient is φ = 820746240.

The previous prime is 2051867177. The next prime is 2051867231. The reversal of 2051867200 is 27681502.

It can be written as a sum of positive squares in 3 ways, for example, as 150209536 + 1901657664 = 12256^2 + 43608^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 639609 + ... + 642808.

Almost surely, 2^2051867200 is an apocalyptic number.

2051867200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051867200 is an abundant number, since it is smaller than the sum of its proper divisors (2997012466).

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

2051867200 is a wasteful number, since it uses less digits than its factorization.

2051867200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282439 (or 1282424 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 2051867200 is about 45297.5407720993. The cubic root of 2051867200 is about 1270.7196615578.

The spelling of 2051867200 in words is "two billion, fifty-one million, eight hundred sixty-seven thousand, two hundred".