1243055982 has 16 divisors (see below), whose sum is σ = 2841270912. Its totient is φ = 355158840.

The previous prime is 1243055941. The next prime is 1243056043. The reversal of 1243055982 is 2895503421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243055982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14798244 + ... + 14798327.

It is an arithmetic number, because the mean of its divisors is an integer number (177579432).

Almost surely, 2^1243055982 is an apocalyptic number.

1243055982 is an abundant number, since it is smaller than the sum of its proper divisors (1598214930).

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

1243055982 is a wasteful number, since it uses less digits than its factorization.

1243055982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29596583.

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 1243055982 is about 35256.9990498341. Note that the first 3 decimals coincide. The cubic root of 1243055982 is about 1075.2189154310.

The spelling of 1243055982 in words is "one billion, two hundred forty-three million, fifty-five thousand, nine hundred eighty-two".