399410 has 16 divisors (see below), whose sum is σ = 784512. Its totient is φ = 145200.

The previous prime is 399409. The next prime is 399433. The reversal of 399410 is 14993.

It is a happy number.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 399410.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1706 + ... + 1925.

It is an arithmetic number, because the mean of its divisors is an integer number (49032).

2³⁹⁹⁴¹⁰ is an apocalyptic number.

399410 is a deficient number, since it is larger than the sum of its proper divisors (385102).

399410 is a wasteful number, since it uses less digits than its factorization.

399410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3649.

The product of its (nonzero) digits is 972, while the sum is 26.

The square root of 399410 is about 631.9889239536. The cubic root of 399410 is about 73.6443858372.

It can be divided in two parts, 3994 and 10, that added together give a palindrome (4004).

The spelling of 399410 in words is "three hundred ninety-nine thousand, four hundred ten".