1399280138934 has 32 divisors (see below), whose sum is σ = 2808715029120. Its totient is φ = 464735380032.

The previous prime is 1399280138933. The next prime is 1399280138947. The reversal of 1399280138934 is 4398310829931.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1399280138933) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4887637 + ... + 5165999.

It is an arithmetic number, because the mean of its divisors is an integer number (87772344660).

Almost surely, 2^{1399280138934} is an apocalyptic number.

1399280138934 is an abundant number, since it is smaller than the sum of its proper divisors (1409434890186).

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

1399280138934 is a wasteful number, since it uses less digits than its factorization.

1399280138934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281404.

The product of its (nonzero) digits is 10077696, while the sum is 60.

The spelling of 1399280138934 in words is "one trillion, three hundred ninety-nine billion, two hundred eighty million, one hundred thirty-eight thousand, nine hundred thirty-four".