399060360 has 48 divisors (see below), whose sum is σ = 1296947340. Its totient is φ = 106416000.

The previous prime is 399060323. The next prime is 399060367. The reversal of 399060360 is 63060993.

It can be written as a sum of positive squares in 2 ways, for example, as 377214084 + 21846276 = 19422^2 + 4674^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (399060367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 553891 + ... + 554610.

Almost surely, 2^399060360 is an apocalyptic number.

399060360 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

399060360 is an abundant number, since it is smaller than the sum of its proper divisors (897886980).

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

399060360 is a wasteful number, since it uses less digits than its factorization.

399060360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108518 (or 1108511 counting only the distinct ones).

The product of its (nonzero) digits is 26244, while the sum is 36.

The square root of 399060360 is about 19976.4951880954. The cubic root of 399060360 is about 736.2289034784.

The spelling of 399060360 in words is "three hundred ninety-nine million, sixty thousand, three hundred sixty".