1394143033728 has 64 divisors (see below), whose sum is σ = 3706757683200. Its totient is φ = 464266940928.

The previous prime is 1394143033693. The next prime is 1394143033757. The reversal of 1394143033728 is 8273303414931.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1394143033728² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1348176 + ... + 2146127.

It is an arithmetic number, because the mean of its divisors is an integer number (57918088800).

Almost surely, 2^{1394143033728} is an apocalyptic number.

It is an amenable number.

1394143033728 is an abundant number, since it is smaller than the sum of its proper divisors (2312614649472).

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

1394143033728 is a wasteful number, since it uses less digits than its factorization.

1394143033728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3495359 (or 3495347 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 48.

The spelling of 1394143033728 in words is "one trillion, three hundred ninety-four billion, one hundred forty-three million, thirty-three thousand, seven hundred twenty-eight".