13130408 has 8 divisors (see below), whose sum is σ = 24619530. Its totient is φ = 6565200.

The previous prime is 13130407. The next prime is 13130419. The reversal of 13130408 is 80403131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 7941124 + 5189284 = 2818^2 + 2278^2 .

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

It is a super-2 number, since 2×13130408² = 344815228492928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13130408.

It is not an unprimeable number, because it can be changed into a prime (13130407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 820643 + ... + 820658.

Almost surely, 2^13130408 is an apocalyptic number.

It is an amenable number.

13130408 is a deficient number, since it is larger than the sum of its proper divisors (11489122).

13130408 is a wasteful number, since it uses less digits than its factorization.

13130408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641307 (or 1641303 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 13130408 is about 3623.5904845885. The cubic root of 13130408 is about 235.9170923945.

Adding to 13130408 its reverse (80403131), we get a palindrome (93533539).

The spelling of 13130408 in words is "thirteen million, one hundred thirty thousand, four hundred eight".