1314625644 has 36 divisors (see below), whose sum is σ = 3343483416. Its totient is φ = 435518208.

The previous prime is 1314625643. The next prime is 1314625703. The reversal of 1314625644 is 4465264131.

1314625644 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 6 + 2 + 5 + 644 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1314625599 and 1314625608.

It is not an unprimeable number, because it can be changed into a prime (1314625643) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106149 + ... + 117884.

Almost surely, 2^1314625644 is an apocalyptic number.

It is an amenable number.

1314625644 is an abundant number, since it is smaller than the sum of its proper divisors (2028857772).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1314625644 is a wasteful number, since it uses less digits than its factorization.

1314625644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224206 (or 224201 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 1314625644 is about 36257.7666714319. The cubic root of 1314625644 is about 1095.4705327504.

Adding to 1314625644 its reverse (4465264131), we get a palindrome (5779889775).

The spelling of 1314625644 in words is "one billion, three hundred fourteen million, six hundred twenty-five thousand, six hundred forty-four".