399080248 has 96 divisors (see below), whose sum is σ = 906998400. Its totient is φ = 161126784.

The previous prime is 399080191. The next prime is 399080257. The reversal of 399080248 is 842080993.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 6764043 + ... + 6764101.

It is an arithmetic number, because the mean of its divisors is an integer number (9447900).

Almost surely, 2^399080248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399080248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (453499200).

399080248 is an abundant number, since it is smaller than the sum of its proper divisors (507918152).

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

399080248 is a wasteful number, since it uses less digits than its factorization.

399080248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 43.

The square root of 399080248 is about 19976.9929669107. The cubic root of 399080248 is about 736.2411337729.

The spelling of 399080248 in words is "three hundred ninety-nine million, eighty thousand, two hundred forty-eight".