130408 has 8 divisors (see below), whose sum is σ = 244530. Its totient is φ = 65200.

The previous prime is 130399. The next prime is 130409. The reversal of 130408 is 804031.

It can be written as a sum of positive squares in only one way, i.e., 91204 + 39204 = 302^2 + 198^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 130391 and 130400.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 130408.

It is not an unprimeable number, because it can be changed into a prime (130409) by changing a digit.

130408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8143 + ... + 8158.

2¹³⁰⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

130408 is a deficient number, since it is larger than the sum of its proper divisors (114122).

130408 is a wasteful number, since it uses less digits than its factorization.

130408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16307 (or 16303 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 130408 is about 361.1204785110. The cubic root of 130408 is about 50.7109108758.

Adding to 130408 its reverse (804031), we get a palindrome (934439).

The spelling of 130408 in words is "one hundred thirty thousand, four hundred eight".