1399204730880 has 2304 divisors, whose sum is σ = 6058098708480. Its totient is φ = 305764761600.

The previous prime is 1399204730873. The next prime is 1399204730993. The reversal of 1399204730880 is 880374029931.

1399204730880 is a `hidden beast` number, since 1 + 3 + 9 + 92 + 0 + 473 + 0 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (2304).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 14424790992 + ... + 14424791088.

It is an arithmetic number, because the mean of its divisors is an integer number (2629383120).

Almost surely, 2^{1399204730880} is an apocalyptic number.

1399204730880 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 1399204730880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3029049354240).

1399204730880 is an abundant number, since it is smaller than the sum of its proper divisors (4658893977600).

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

1399204730880 is a wasteful number, since it uses less digits than its factorization.

1399204730880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 1399204730880 in words is "one trillion, three hundred ninety-nine billion, two hundred four million, seven hundred thirty thousand, eight hundred eighty".