399102060 has 288 divisors, whose sum is σ = 1397329920. Its totient is φ = 84672000.

The previous prime is 399102043. The next prime is 399102061. The reversal of 399102060 is 60201993.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (399102061) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2642985 + ... + 2643135.

It is an arithmetic number, because the mean of its divisors is an integer number (4851840).

Almost surely, 2^399102060 is an apocalyptic number.

399102060 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 399102060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (698664960).

399102060 is an abundant number, since it is smaller than the sum of its proper divisors (998227860).

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

399102060 is a wasteful number, since it uses less digits than its factorization.

399102060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237 (or 228 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 399102060 is about 19977.5388874606. The cubic root of 399102060 is about 736.2545467804.

The spelling of 399102060 in words is "three hundred ninety-nine million, one hundred two thousand, sixty".