1216472404 has 24 divisors (see below), whose sum is σ = 2437344000. Its totient is φ = 520402656.

The previous prime is 1216472393. The next prime is 1216472437. The reversal of 1216472404 is 4042746121.

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, 23404 + ... + 54595.

It is an arithmetic number, because the mean of its divisors is an integer number (101556000).

Almost surely, 2^1216472404 is an apocalyptic number.

1216472404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1216472404 is an abundant number, since it is smaller than the sum of its proper divisors (1220871596).

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

1216472404 is a wasteful number, since it uses less digits than its factorization.

1216472404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78567 (or 78565 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 31.

The square root of 1216472404 is about 34877.9644474846. The cubic root of 1216472404 is about 1067.4988612880.

The spelling of 1216472404 in words is "one billion, two hundred sixteen million, four hundred seventy-two thousand, four hundred four".