399264892441 has 8 divisors (see below), whose sum is σ = 399722400000. Its totient is φ = 398807603520.

The previous prime is 399264892423. The next prime is 399264892549. The reversal of 399264892441 is 144298462993.

It is a happy number.

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 399264892441 - 2¹¹ = 399264890393 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 399264892441.

It is not an unprimeable number, because it can be changed into a prime (399264892241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3750060 + ... + 3855058.

It is an arithmetic number, because the mean of its divisors is an integer number (49965300000).

Almost surely, 2^399264892441 is an apocalyptic number.

It is an amenable number.

399264892441 is a deficient number, since it is larger than the sum of its proper divisors (457507559).

399264892441 is a wasteful number, since it uses less digits than its factorization.

399264892441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109319.

The product of its digits is 26873856, while the sum is 61.

The spelling of 399264892441 in words is "three hundred ninety-nine billion, two hundred sixty-four million, eight hundred ninety-two thousand, four hundred forty-one".