401374443439 has 8 divisors (see below), whose sum is σ = 404324370000. Its totient is φ = 398427932352.

The previous prime is 401374443401. The next prime is 401374443473. The reversal of 401374443439 is 934344473104.

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 401374443439 - 2¹⁹ = 401373919151 is a prime.

It is a super-2 number, since 2×401374443439² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (401374443499) 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, 617734 + ... + 1088275.

It is an arithmetic number, because the mean of its divisors is an integer number (50540546250).

Almost surely, 2^401374443439 is an apocalyptic number.

401374443439 is a deficient number, since it is larger than the sum of its proper divisors (2949926561).

401374443439 is a wasteful number, since it uses less digits than its factorization.

401374443439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1707737.

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 401374443439 in words is "four hundred one billion, three hundred seventy-four million, four hundred forty-three thousand, four hundred thirty-nine".