1243294880 has 48 divisors (see below), whose sum is σ = 2981149920. Its totient is φ = 489891072.

The previous prime is 1243294867. The next prime is 1243294883. The reversal of 1243294880 is 884923421.

It is not an unprimeable number, because it can be changed into a prime (1243294883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47270 + ... + 68709.

It is an arithmetic number, because the mean of its divisors is an integer number (62107290).

Almost surely, 2^1243294880 is an apocalyptic number.

1243294880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243294880 is an abundant number, since it is smaller than the sum of its proper divisors (1737855040).

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

1243294880 is a wasteful number, since it uses less digits than its factorization.

1243294880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116061 (or 116053 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 41.

The square root of 1243294880 is about 35260.3868384906. The cubic root of 1243294880 is about 1075.2877917054.

The spelling of 1243294880 in words is "one billion, two hundred forty-three million, two hundred ninety-four thousand, eight hundred eighty".