399483360 has 384 divisors, whose sum is σ = 1528934400. Its totient is φ = 97044480.

The previous prime is 399483347. The next prime is 399483361. The reversal of 399483360 is 63384993.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399483361) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2544402 + ... + 2544558.

It is an arithmetic number, because the mean of its divisors is an integer number (3981600).

Almost surely, 2^399483360 is an apocalyptic number.

399483360 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 399483360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (764467200).

399483360 is an abundant number, since it is smaller than the sum of its proper divisors (1129451040).

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

399483360 is a wasteful number, since it uses less digits than its factorization.

399483360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231 (or 217 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 399483360 is about 19987.0798267281. The cubic root of 399483360 is about 736.4889433841.

The spelling of 399483360 in words is "three hundred ninety-nine million, four hundred eighty-three thousand, three hundred sixty".