399850080 has 192 divisors, whose sum is σ = 1464583680. Its totient is φ = 89800704.

The previous prime is 399850069. The next prime is 399850097. The reversal of 399850080 is 80058993.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197232 + ... + 199248.

It is an arithmetic number, because the mean of its divisors is an integer number (7628040).

Almost surely, 2^399850080 is an apocalyptic number.

399850080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399850080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732291840).

399850080 is an abundant number, since it is smaller than the sum of its proper divisors (1064733600).

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

399850080 is a wasteful number, since it uses less digits than its factorization.

399850080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101 (or 2093 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 399850080 is about 19996.2516487466. The cubic root of 399850080 is about 736.7142365583.

The spelling of 399850080 in words is "three hundred ninety-nine million, eight hundred fifty thousand, eighty".