130406344 has 8 divisors (see below), whose sum is σ = 244511910. Its totient is φ = 65203168.

The previous prime is 130406323. The next prime is 130406347. The reversal of 130406344 is 443604031.

It is a happy number.

130406344 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 113678244 + 16728100 = 10662^2 + 4090^2 .

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

It is not an unprimeable number, because it can be changed into a prime (130406347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8150389 + ... + 8150404.

Almost surely, 2^130406344 is an apocalyptic number.

It is an amenable number.

130406344 is a deficient number, since it is larger than the sum of its proper divisors (114105566).

130406344 is a wasteful number, since it uses less digits than its factorization.

130406344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16300799 (or 16300795 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 130406344 is about 11419.5597113024. The cubic root of 130406344 is about 507.1069622227.

The spelling of 130406344 in words is "one hundred thirty million, four hundred six thousand, three hundred forty-four".