1252042443340 has 48 divisors (see below), whose sum is σ = 2832654484800. Its totient is φ = 462110987520.

The previous prime is 1252042443283. The next prime is 1252042443341. The reversal of 1252042443340 is 433442402521.

It is a super-2 number, since 2×1252042443340² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1252042443296 and 1252042443305.

It is not an unprimeable number, because it can be changed into a prime (1252042443341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281856 + ... + 1607335.

It is an arithmetic number, because the mean of its divisors is an integer number (59013635100).

Almost surely, 2^{1252042443340} is an apocalyptic number.

1252042443340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252042443340 is an abundant number, since it is smaller than the sum of its proper divisors (1580612041460).

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

1252042443340 is a wasteful number, since it uses less digits than its factorization.

1252042443340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1891762 (or 1891760 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 34.

Adding to 1252042443340 its reverse (433442402521), we get a palindrome (1685484845861).

The spelling of 1252042443340 in words is "one trillion, two hundred fifty-two billion, forty-two million, four hundred forty-three thousand, three hundred forty".