1223458916 has 6 divisors (see below), whose sum is σ = 2141053110. Its totient is φ = 611729456.

The previous prime is 1223458897. The next prime is 1223458933. The reversal of 1223458916 is 6198543221.

It can be written as a sum of positive squares in only one way, i.e., 1027458916 + 196000000 = 32054^2 + 14000^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 152932361 + ... + 152932368.

It is an arithmetic number, because the mean of its divisors is an integer number (356842185).

Almost surely, 2^1223458916 is an apocalyptic number.

It is an amenable number.

1223458916 is a deficient number, since it is larger than the sum of its proper divisors (917594194).

1223458916 is a wasteful number, since it uses less digits than its factorization.

1223458916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305864733 (or 305864731 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 1223458916 is about 34977.9775859040. The cubic root of 1223458916 is about 1069.5386009620.

The spelling of 1223458916 in words is "one billion, two hundred twenty-three million, four hundred fifty-eight thousand, nine hundred sixteen".