1394281008000 has 384 divisors, whose sum is σ = 5011355512800. Its totient is φ = 371500646400.

The previous prime is 1394281007971. The next prime is 1394281008007. The reversal of 1394281008000 is 8001824931.

It is a tau number, because it is divible by the number of its divisors (384).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1394281008007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213548736 + ... + 213555264.

Almost surely, 2^{1394281008000} is an apocalyptic number.

1394281008000 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 1394281008000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2505677756400).

1394281008000 is an abundant number, since it is smaller than the sum of its proper divisors (3617074504800).

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

1394281008000 is a wasteful number, since it uses less digits than its factorization.

1394281008000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8047 (or 8022 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 36.

The spelling of 1394281008000 in words is "one trillion, three hundred ninety-four billion, two hundred eighty-one million, eight thousand".