399130 has 16 divisors (see below), whose sum is σ = 725760. Its totient is φ = 158032.

The previous prime is 399107. The next prime is 399131. The reversal of 399130 is 31993.

It is a junction number, because it is equal to n+sod(n) for n = 399095 and 399104.

It is not an unprimeable number, because it can be changed into a prime (399131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1551 + ... + 1789.

It is an arithmetic number, because the mean of its divisors is an integer number (45360).

2³⁹⁹¹³⁰ is an apocalyptic number.

399130 is a deficient number, since it is larger than the sum of its proper divisors (326630).

399130 is a wasteful number, since it uses less digits than its factorization.

399130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413.

The product of its (nonzero) digits is 729, while the sum is 25.

The square root of 399130 is about 631.7673622466. The cubic root of 399130 is about 73.6271727408.

It can be divided in two parts, 399 and 130, that added together give a square (529 = 23²).

The spelling of 399130 in words is "three hundred ninety-nine thousand, one hundred thirty".