399603060 has 144 divisors (see below), whose sum is σ = 1283405760. Its totient is φ = 100362240.

The previous prime is 399603019. The next prime is 399603073. The reversal of 399603060 is 60306993.

It is a super-2 number, since 2×399603060² = 319365211122727200, which contains 22 as substring.

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

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 47 ways as a sum of consecutive naturals, for example, 1131844 + ... + 1132196.

It is an arithmetic number, because the mean of its divisors is an integer number (8912540).

Almost surely, 2^399603060 is an apocalyptic number.

399603060 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 399603060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (641702880).

399603060 is an abundant number, since it is smaller than the sum of its proper divisors (883802700).

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

399603060 is a wasteful number, since it uses less digits than its factorization.

399603060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718 (or 713 counting only the distinct ones).

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

The square root of 399603060 is about 19990.0740368814. The cubic root of 399603060 is about 736.5624958202.

The spelling of 399603060 in words is "three hundred ninety-nine million, six hundred three thousand, sixty".