1252040240000 has 480 divisors, whose sum is σ = 3447839869320. Its totient is φ = 452390400000.

The previous prime is 1252040239993. The next prime is 1252040240023. The reversal of 1252040240000 is 420402521.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 2042479694 + ... + 2042480306.

Almost surely, 2^{1252040240000} is an apocalyptic number.

1252040240000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1252040240000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1723919934660).

1252040240000 is an abundant number, since it is smaller than the sum of its proper divisors (2195799629320).

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

1252040240000 is an equidigital number, since it uses as much as digits as its factorization.

1252040240000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880 (or 842 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

Adding to 1252040240000 its reverse (420402521), we get a palindrome (1252460642521).

The spelling of 1252040240000 in words is "one trillion, two hundred fifty-two billion, forty million, two hundred forty thousand".