401139246239 has 8 divisors (see below), whose sum is σ = 422420269920. Its totient is φ = 380178238176.

The previous prime is 401139246227. The next prime is 401139246241. The reversal of 401139246239 is 932642931104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 401139246239 - 2⁴ = 401139246223 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 401139246239.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401139246289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80001332 + ... + 80006345.

It is an arithmetic number, because the mean of its divisors is an integer number (52802533740).

Almost surely, 2^401139246239 is an apocalyptic number.

401139246239 is a deficient number, since it is larger than the sum of its proper divisors (21281023681).

401139246239 is a wasteful number, since it uses less digits than its factorization.

401139246239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160007809.

The product of its (nonzero) digits is 279936, while the sum is 44.

The spelling of 401139246239 in words is "four hundred one billion, one hundred thirty-nine million, two hundred forty-six thousand, two hundred thirty-nine".