1243416880 has 40 divisors (see below), whose sum is σ = 2894828112. Its totient is φ = 496698624.

The previous prime is 1243416871. The next prime is 1243416883. The reversal of 1243416880 is 886143421.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (1243416883) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51787 + ... + 71893.

Almost surely, 2^1243416880 is an apocalyptic number.

1243416880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243416880 is an abundant number, since it is smaller than the sum of its proper divisors (1651411232).

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

1243416880 is a wasteful number, since it uses less digits than its factorization.

1243416880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20893 (or 20887 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 1243416880 is about 35262.1167827458. The cubic root of 1243416880 is about 1075.3229619137.

The spelling of 1243416880 in words is "one billion, two hundred forty-three million, four hundred sixteen thousand, eight hundred eighty".