2051130400 has 72 divisors (see below), whose sum is σ = 5462556624. Its totient is φ = 745862400.

The previous prime is 2051130383. The next prime is 2051130439. The reversal of 2051130400 is 40311502.

It is a Harshad number since it is a multiple of its sum of digits (16).

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 11 ways as a sum of consecutive naturals, for example, 107742 + ... + 125341.

It is an arithmetic number, because the mean of its divisors is an integer number (75868842).

Almost surely, 2^2051130400 is an apocalyptic number.

2051130400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2051130400 is an abundant number, since it is smaller than the sum of its proper divisors (3411426224).

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

2051130400 is a wasteful number, since it uses less digits than its factorization.

2051130400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233114 (or 233101 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2051130400 is about 45289.4071500169. The cubic root of 2051130400 is about 1270.5675434714.

Adding to 2051130400 its reverse (40311502), we get a palindrome (2091441902).

The spelling of 2051130400 in words is "two billion, fifty-one million, one hundred thirty thousand, four hundred".