1264254200 has 96 divisors (see below), whose sum is σ = 3215754000. Its totient is φ = 458419200.

The previous prime is 1264254197. The next prime is 1264254203. The reversal of 1264254200 is 24524621.

It is an interprime number because it is at equal distance from previous prime (1264254197) and next prime (1264254203).

It is a self number, because there is not a number n which added to its sum of digits gives 1264254200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1264254203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1119236 + ... + 1120364.

Almost surely, 2^1264254200 is an apocalyptic number.

1264254200 is a gapful number since it is divisible by the number (10) 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 1264254200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1607877000).

1264254200 is an abundant number, since it is smaller than the sum of its proper divisors (1951499800).

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

1264254200 is a wasteful number, since it uses less digits than its factorization.

1264254200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665 (or 1656 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 1264254200 is about 35556.3524563474. The cubic root of 1264254200 is about 1081.2965110802.

Adding to 1264254200 its reverse (24524621), we get a palindrome (1288778821).

The spelling of 1264254200 in words is "one billion, two hundred sixty-four million, two hundred fifty-four thousand, two hundred".