1212928992 has 240 divisors, whose sum is σ = 4098124800. Its totient is φ = 348053760.

The previous prime is 1212928979. The next prime is 1212928999. The reversal of 1212928992 is 2998292121.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212928999) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 540609 + ... + 542847.

It is an arithmetic number, because the mean of its divisors is an integer number (17075520).

Almost surely, 2^1212928992 is an apocalyptic number.

1212928992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1212928992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2049062400).

1212928992 is an abundant number, since it is smaller than the sum of its proper divisors (2885195808).

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

1212928992 is a wasteful number, since it uses less digits than its factorization.

1212928992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2291 (or 2274 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 1212928992 is about 34827.1301143232. The cubic root of 1212928992 is about 1066.4613622231.

The spelling of 1212928992 in words is "one billion, two hundred twelve million, nine hundred twenty-eight thousand, nine hundred ninety-two".