1239049873240 has 64 divisors (see below), whose sum is σ = 2794658630400. Its totient is φ = 494412340608.

The previous prime is 1239049873223. The next prime is 1239049873253. The reversal of 1239049873240 is 423789409321.

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 15 ways as a sum of consecutive naturals, for example, 81044877 + ... + 81060163.

It is an arithmetic number, because the mean of its divisors is an integer number (43666541100).

Almost surely, 2^{1239049873240} is an apocalyptic number.

1239049873240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1239049873240 is an abundant number, since it is smaller than the sum of its proper divisors (1555608757160).

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

1239049873240 is a wasteful number, since it uses less digits than its factorization.

1239049873240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20104 (or 20100 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 1239049873240 in words is "one trillion, two hundred thirty-nine billion, forty-nine million, eight hundred seventy-three thousand, two hundred forty".