1243358960 has 20 divisors (see below), whose sum is σ = 2890809768. Its totient is φ = 497343552.

The previous prime is 1243358957. The next prime is 1243358969. The reversal of 1243358960 is 698533421.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243358969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7770914 + ... + 7771073.

Almost surely, 2^1243358960 is an apocalyptic number.

1243358960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243358960 is an abundant number, since it is smaller than the sum of its proper divisors (1647450808).

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

1243358960 is a wasteful number, since it uses less digits than its factorization.

1243358960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15542000 (or 15541994 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 1243358960 is about 35261.2954952027. The cubic root of 1243358960 is about 1075.3062650000.

The spelling of 1243358960 in words is "one billion, two hundred forty-three million, three hundred fifty-eight thousand, nine hundred sixty".