2122928456 has 16 divisors (see below), whose sum is σ = 4342353840. Its totient is φ = 964967440.

The previous prime is 2122928449. The next prime is 2122928459. The reversal of 2122928456 is 6548292212.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2122928459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12062006 + ... + 12062181.

It is an arithmetic number, because the mean of its divisors is an integer number (271397115).

Almost surely, 2^2122928456 is an apocalyptic number.

It is an amenable number.

2122928456 is an abundant number, since it is smaller than the sum of its proper divisors (2219425384).

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

2122928456 is a wasteful number, since it uses less digits than its factorization.

2122928456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24124204 (or 24124200 counting only the distinct ones).

The product of its digits is 138240, while the sum is 41.

The square root of 2122928456 is about 46075.2477584223. The cubic root of 2122928456 is about 1285.2228929971. Note that the first 3 decimals are identical.

The spelling of 2122928456 in words is "two billion, one hundred twenty-two million, nine hundred twenty-eight thousand, four hundred fifty-six".