1000005264 has 120 divisors (see below), whose sum is σ = 3055255840. Its totient is φ = 315767808.

The previous prime is 1000005233. The next prime is 1000005277. The reversal of 1000005264 is 4625000001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 23 ways as a sum of consecutive naturals, for example, 67104 + ... + 80640.

Almost surely, 2^1000005264 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 1000005264, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1527627920).

1000005264 is an abundant number, since it is smaller than the sum of its proper divisors (2055250576).

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

1000005264 is a wasteful number, since it uses less digits than its factorization.

1000005264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13579 (or 13561 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1000005264 is about 31622.8598327223. The cubic root of 1000005264 is about 1000.0017546636.

Adding to 1000005264 its reverse (4625000001), we get a palindrome (5625005265).

The spelling of 1000005264 in words is "one billion, five thousand, two hundred sixty-four".