1236448134940 has 24 divisors (see below), whose sum is σ = 2612470790160. Its totient is φ = 491545024128.

The previous prime is 1236448134931. The next prime is 1236448134973. The reversal of 1236448134940 is 494318446321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 189636025 + ... + 189642544.

It is an arithmetic number, because the mean of its divisors is an integer number (108852949590).

Almost surely, 2^{1236448134940} is an apocalyptic number.

1236448134940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1236448134940 is an abundant number, since it is smaller than the sum of its proper divisors (1376022655220).

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

1236448134940 is a wasteful number, since it uses less digits than its factorization.

1236448134940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379278741 (or 379278739 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 49.

The spelling of 1236448134940 in words is "one trillion, two hundred thirty-six billion, four hundred forty-eight million, one hundred thirty-four thousand, nine hundred forty".