1252451422040 has 96 divisors (see below), whose sum is σ = 3487383888480. Its totient is φ = 396380215296.

The previous prime is 1252451422031. The next prime is 1252451422063. The reversal of 1252451422040 is 402241542521.

It is a junction number, because it is equal to n+sod(n) for n = 1252451421988 and 1252451422006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13186529 + ... + 13281168.

It is an arithmetic number, because the mean of its divisors is an integer number (36326915505).

Almost surely, 2^{1252451422040} is an apocalyptic number.

1252451422040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252451422040 is an abundant number, since it is smaller than the sum of its proper divisors (2234932466440).

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

1252451422040 is a wasteful number, since it uses less digits than its factorization.

1252451422040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26467741 (or 26467724 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 32.

Adding to 1252451422040 its reverse (402241542521), we get a palindrome (1654692964561).

The spelling of 1252451422040 in words is "one trillion, two hundred fifty-two billion, four hundred fifty-one million, four hundred twenty-two thousand, forty".