1245438494424 has 192 divisors, whose sum is σ = 3498574510080. Its totient is φ = 400248043200.

The previous prime is 1245438494383. The next prime is 1245438494473. The reversal of 1245438494424 is 4244948345421.

1245438494424 is a `hidden beast` number, since 1 + 2 + 4 + 54 + 3 + 84 + 94 + 424 = 666.

It is a super-2 number, since 2×1245438494424² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 667079139 + ... + 667081005.

It is an arithmetic number, because the mean of its divisors is an integer number (18221742240).

Almost surely, 2^{1245438494424} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245438494424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1749287255040).

1245438494424 is an abundant number, since it is smaller than the sum of its proper divisors (2253136015656).

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

1245438494424 is a wasteful number, since it uses less digits than its factorization.

1245438494424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2283 (or 2214 counting only the distinct ones).

The product of its digits is 17694720, while the sum is 54.

The spelling of 1245438494424 in words is "one trillion, two hundred forty-five billion, four hundred thirty-eight million, four hundred ninety-four thousand, four hundred twenty-four".