1240738947000 has 1152 divisors, whose sum is σ = 5145557114880. Its totient is φ = 268470720000.

The previous prime is 1240738946987. The next prime is 1240738947001. The reversal of 1240738947000 is 7498370421.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240738947001) by changing a digit.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 642536035 + ... + 642537965.

It is an arithmetic number, because the mean of its divisors is an integer number (4466629440).

Almost surely, 2^{1240738947000} is an apocalyptic number.

1240738947000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1240738947000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2572778557440).

1240738947000 is an abundant number, since it is smaller than the sum of its proper divisors (3904818167880).

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

1240738947000 is a wasteful number, since it uses less digits than its factorization.

1240738947000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050 (or 2026 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 1240738947000 in words is "one trillion, two hundred forty billion, seven hundred thirty-eight million, nine hundred forty-seven thousand".