1216433088 has 84 divisors (see below), whose sum is σ = 3754915528. Its totient is φ = 374284800.

The previous prime is 1216433081. The next prime is 1216433107. The reversal of 1216433088 is 8803346121.

1216433088 is a `hidden beast` number, since 1 + 2 + 1 + 643 + 3 + 0 + 8 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1216433081) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73738 + ... + 88713.

Almost surely, 2^1216433088 is an apocalyptic number.

1216433088 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1216433088 is an abundant number, since it is smaller than the sum of its proper divisors (2538482440).

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

1216433088 is a wasteful number, since it uses less digits than its factorization.

1216433088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162482 (or 162469 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The square root of 1216433088 is about 34877.4008205887. The cubic root of 1216433088 is about 1067.4873607566.

The spelling of 1216433088 in words is "one billion, two hundred sixteen million, four hundred thirty-three thousand, eighty-eight".