2042251312240 has 40 divisors (see below), whose sum is σ = 4775680774368. Its totient is φ = 812178551040.

The previous prime is 2042251312169. The next prime is 2042251312243. The reversal of 2042251312240 is 422131522402.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 2042251312199 and 2042251312208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042251312243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73766916 + ... + 73794595.

Almost surely, 2^{2042251312240} is an apocalyptic number.

2042251312240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2042251312240 is an abundant number, since it is smaller than the sum of its proper divisors (2733429462128).

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

2042251312240 is a wasteful number, since it uses less digits than its factorization.

2042251312240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147561697 (or 147561691 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 2042251312240 its reverse (422131522402), we get a palindrome (2464382834642).

The spelling of 2042251312240 in words is "two trillion, forty-two billion, two hundred fifty-one million, three hundred twelve thousand, two hundred forty".