1243252696 has 48 divisors (see below), whose sum is σ = 2731314600. Its totient is φ = 528966144.

The previous prime is 1243252691. The next prime is 1243252697. The reversal of 1243252696 is 6962523421.

It is a super-2 number, since 2×1243252696² = 3091354532222536832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243252691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43080 + ... + 65896.

Almost surely, 2^1243252696 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 1243252696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1365657300).

1243252696 is an abundant number, since it is smaller than the sum of its proper divisors (1488061904).

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

1243252696 is a wasteful number, since it uses less digits than its factorization.

1243252696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22976 (or 22965 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 1243252696 is about 35259.7886550671. The cubic root of 1243252696 is about 1075.2756303498.

The spelling of 1243252696 in words is "one billion, two hundred forty-three million, two hundred fifty-two thousand, six hundred ninety-six".