1290250752 has 320 divisors, whose sum is σ = 4190208000. Its totient is φ = 352235520.

The previous prime is 1290250747. The next prime is 1290250777. The reversal of 1290250752 is 2570520921.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16332249 + ... + 16332327.

It is an arithmetic number, because the mean of its divisors is an integer number (13094400).

Almost surely, 2^1290250752 is an apocalyptic number.

1290250752 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 1290250752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2095104000).

1290250752 is an abundant number, since it is smaller than the sum of its proper divisors (2899957248).

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

1290250752 is an frugal number, since it uses more digits than its factorization.

1290250752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152 (or 122 counting only the distinct ones).

The product of its (nonzero) digits is 12600, while the sum is 33.

The square root of 1290250752 is about 35920.0605790135. The cubic root of 1290250752 is about 1088.6577625851.

The spelling of 1290250752 in words is "one billion, two hundred ninety million, two hundred fifty thousand, seven hundred fifty-two".