1264630104 has 128 divisors (see below), whose sum is σ = 3655296000. Its totient is φ = 404756352.

The previous prime is 1264630093. The next prime is 1264630109. The reversal of 1264630104 is 4010364621.

1264630104 is a `hidden beast` number, since 1 + 2 + 646 + 3 + 0 + 10 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264630109) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 630367 + ... + 632369.

It is an arithmetic number, because the mean of its divisors is an integer number (28557000).

Almost surely, 2^1264630104 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264630104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827648000).

1264630104 is an abundant number, since it is smaller than the sum of its proper divisors (2390665896).

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

1264630104 is a wasteful number, since it uses less digits than its factorization.

1264630104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 1264630104 is about 35561.6380950034. The cubic root of 1264630104 is about 1081.4036686981.

Adding to 1264630104 its reverse (4010364621), we get a palindrome (5274994725).

The spelling of 1264630104 in words is "one billion, two hundred sixty-four million, six hundred thirty thousand, one hundred four".