2044040040400 has 30 divisors (see below), whose sum is σ = 4910806198022. Its totient is φ = 817616016000.

The previous prime is 2044040040347. The next prime is 2044040040409. The reversal of 2044040040400 is 40400404402.

It can be written as a sum of positive squares in 3 ways, for example, as 369873181584 + 1674166858816 = 608172^2 + 1293896^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044040040409) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2555049651 + ... + 2555050450.

Almost surely, 2^{2044040040400} is an apocalyptic number.

2044040040400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2044040040400 is an abundant number, since it is smaller than the sum of its proper divisors (2866766157622).

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

2044040040400 is a wasteful number, since it uses less digits than its factorization.

2044040040400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110100119 (or 5110100108 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 2044040040400 its reverse (40400404402), we get a palindrome (2084440444802).

The spelling of 2044040040400 in words is "two trillion, forty-four billion, forty million, forty thousand, four hundred".