1264530044 has 6 divisors (see below), whose sum is σ = 2212927584. Its totient is φ = 632265020.

The previous prime is 1264529993. The next prime is 1264530049. The reversal of 1264530044 is 4400354621.

It is a junction number, because it is equal to n+sod(n) for n = 1264529989 and 1264530016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264530049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 158066252 + ... + 158066259.

It is an arithmetic number, because the mean of its divisors is an integer number (368821264).

Almost surely, 2^1264530044 is an apocalyptic number.

It is an amenable number.

1264530044 is a deficient number, since it is larger than the sum of its proper divisors (948397540).

1264530044 is a wasteful number, since it uses less digits than its factorization.

1264530044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316132515 (or 316132513 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 1264530044 is about 35560.2312140965. The cubic root of 1264530044 is about 1081.3751470235.

Adding to 1264530044 its reverse (4400354621), we get a palindrome (5664884665).

The spelling of 1264530044 in words is "one billion, two hundred sixty-four million, five hundred thirty thousand, forty-four".