1251484260 has 192 divisors, whose sum is σ = 3954370560. Its totient is φ = 293621760.

The previous prime is 1251484237. The next prime is 1251484271. The reversal of 1251484260 is 624841521.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1764786 + ... + 1765494.

It is an arithmetic number, because the mean of its divisors is an integer number (20595680).

Almost surely, 2^1251484260 is an apocalyptic number.

1251484260 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 1251484260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1977185280).

1251484260 is an abundant number, since it is smaller than the sum of its proper divisors (2702886300).

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

1251484260 is a wasteful number, since it uses less digits than its factorization.

1251484260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838 (or 836 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 1251484260 is about 35376.3234381415. The cubic root of 1251484260 is about 1077.6435418683.

The spelling of 1251484260 in words is "one billion, two hundred fifty-one million, four hundred eighty-four thousand, two hundred sixty".