1264123332 has 144 divisors (see below), whose sum is σ = 3645637632. Its totient is φ = 366981120.

The previous prime is 1264123307. The next prime is 1264123351. The reversal of 1264123332 is 2333214621.

1264123332 is a `hidden beast` number, since 12 + 641 + 2 + 3 + 3 + 3 + 2 = 666.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1264123296 and 1264123305.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 434908 + ... + 437804.

It is an arithmetic number, because the mean of its divisors is an integer number (25316928).

Almost surely, 2^1264123332 is an apocalyptic number.

1264123332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264123332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1822818816).

1264123332 is an abundant number, since it is smaller than the sum of its proper divisors (2381514300).

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

1264123332 is a wasteful number, since it uses less digits than its factorization.

1264123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2978 (or 2973 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 1264123332 is about 35554.5121187171. The cubic root of 1264123332 is about 1081.2592000197.

Adding to 1264123332 its reverse (2333214621), we get a palindrome (3597337953).

The spelling of 1264123332 in words is "one billion, two hundred sixty-four million, one hundred twenty-three thousand, three hundred thirty-two".