42449000399 has 16 divisors (see below), whose sum is σ = 47730631872. Its totient is φ = 37457468928.

The previous prime is 42449000389. The next prime is 42449000413. The reversal of 42449000399 is 99300094424.

It is a cyclic number.

It is not a de Polignac number, because 42449000399 - 2¹⁶ = 42448934863 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42449000359) 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 15 ways as a sum of consecutive naturals, for example, 464279 + ... + 548135.

It is an arithmetic number, because the mean of its divisors is an integer number (2983164492).

Almost surely, 2^42449000399 is an apocalyptic number.

42449000399 is a deficient number, since it is larger than the sum of its proper divisors (5281631473).

42449000399 is a wasteful number, since it uses less digits than its factorization.

42449000399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85586.

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

The spelling of 42449000399 in words is "forty-two billion, four hundred forty-nine million, three hundred ninety-nine", and thus it is an aban number.