2050400045 has 16 divisors (see below), whose sum is σ = 2499517440. Its totient is φ = 1614444864.

The previous prime is 2050400041. The next prime is 2050400069. The reversal of 2050400045 is 5400040502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2050400045 - 2² = 2050400041 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2050400041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102452 + ... + 120818.

It is an arithmetic number, because the mean of its divisors is an integer number (156219840).

Almost surely, 2^2050400045 is an apocalyptic number.

It is an amenable number.

2050400045 is a deficient number, since it is larger than the sum of its proper divisors (449117395).

2050400045 is a wasteful number, since it uses less digits than its factorization.

2050400045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18724.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 2050400045 is about 45281.3432331683. The cubic root of 2050400045 is about 1270.4167200487.

Adding to 2050400045 its reverse (5400040502), we get a palindrome (7450440547).

The spelling of 2050400045 in words is "two billion, fifty million, four hundred thousand, forty-five".