1264210530 has 64 divisors (see below), whose sum is σ = 3324585600. Its totient is φ = 305118720.

The previous prime is 1264210529. The next prime is 1264210531. The reversal of 1264210530 is 350124621.

It is an interprime number because it is at equal distance from previous prime (1264210529) and next prime (1264210531).

It is a self number, because there is not a number n which added to its sum of digits gives 1264210530.

It is not an unprimeable number, because it can be changed into a prime (1264210531) 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, 67206 + ... + 83934.

It is an arithmetic number, because the mean of its divisors is an integer number (51946650).

Almost surely, 2^1264210530 is an apocalyptic number.

1264210530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1264210530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1662292800).

1264210530 is an abundant number, since it is smaller than the sum of its proper divisors (2060375070).

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

1264210530 is a wasteful number, since it uses less digits than its factorization.

1264210530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16979.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 1264210530 is about 35555.7383554329. The cubic root of 1264210530 is about 1081.2840608514.

The spelling of 1264210530 in words is "one billion, two hundred sixty-four million, two hundred ten thousand, five hundred thirty".