1389035370240 has 432 divisors, whose sum is σ = 5495429721600. Its totient is φ = 317323173888.

The previous prime is 1389035370227. The next prime is 1389035370263. The reversal of 1389035370240 is 420735309831.

1389035370240 is a `hidden beast` number, since 1 + 3 + 8 + 9 + 0 + 35 + 370 + 240 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 207967221 + ... + 207973899.

Almost surely, 2^{1389035370240} is an apocalyptic number.

1389035370240 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 1389035370240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2747714860800).

1389035370240 is an abundant number, since it is smaller than the sum of its proper divisors (4106394351360).

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

1389035370240 is a wasteful number, since it uses less digits than its factorization.

1389035370240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9292 (or 9275 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The spelling of 1389035370240 in words is "one trillion, three hundred eighty-nine billion, thirty-five million, three hundred seventy thousand, two hundred forty".