1294550880 has 192 divisors, whose sum is σ = 4720343040. Its totient is φ = 292091904.

The previous prime is 1294550863. The next prime is 1294550893. The reversal of 1294550880 is 880554921.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent 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, 263002 + ... + 267878.

It is an arithmetic number, because the mean of its divisors is an integer number (24585120).

Almost surely, 2^1294550880 is an apocalyptic number.

1294550880 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 1294550880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2360171520).

1294550880 is an abundant number, since it is smaller than the sum of its proper divisors (3425792160).

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

1294550880 is a wasteful number, since it uses less digits than its factorization.

1294550880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981 (or 4973 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 42.

The square root of 1294550880 is about 35979.8677040369. The cubic root of 1294550880 is about 1089.8658421423.

The spelling of 1294550880 in words is "one billion, two hundred ninety-four million, five hundred fifty thousand, eight hundred eighty".