399467068 has 48 divisors (see below), whose sum is σ = 938617344. Its totient is φ = 143663040.

The previous prime is 399467041. The next prime is 399467069. The reversal of 399467068 is 860764993.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399467069) by changing a digit.

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, 45880 + ... + 53887.

It is an arithmetic number, because the mean of its divisors is an integer number (19554528).

Almost surely, 2^399467068 is an apocalyptic number.

It is an amenable number.

399467068 is an abundant number, since it is smaller than the sum of its proper divisors (539150276).

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

399467068 is a wasteful number, since it uses less digits than its factorization.

399467068 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99802 (or 99800 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 52.

The square root of 399467068 is about 19986.6722592832. The cubic root of 399467068 is about 736.4789312516.

The spelling of 399467068 in words is "three hundred ninety-nine million, four hundred sixty-seven thousand, sixty-eight".