1216642024 has 32 divisors (see below), whose sum is σ = 2460780000. Its totient is φ = 560590272.

The previous prime is 1216642003. The next prime is 1216642039. The reversal of 1216642024 is 4202466121.

It is a junction number, because it is equal to n+sod(n) for n = 1216641983 and 1216642001.

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, 54927 + ... + 73825.

It is an arithmetic number, because the mean of its divisors is an integer number (76899375).

Almost surely, 2^1216642024 is an apocalyptic number.

It is an amenable number.

1216642024 is an abundant number, since it is smaller than the sum of its proper divisors (1244137976).

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

1216642024 is a wasteful number, since it uses less digits than its factorization.

1216642024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19537 (or 19533 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 1216642024 is about 34880.3959839908. The cubic root of 1216642024 is about 1067.5484748923.

The spelling of 1216642024 in words is "one billion, two hundred sixteen million, six hundred forty-two thousand, twenty-four".