2236421928 has 64 divisors (see below), whose sum is σ = 6282944640. Its totient is φ = 658209024.

The previous prime is 2236421921. The next prime is 2236421939. The reversal of 2236421928 is 8291246322.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (2236421921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148651 + ... + 163002.

It is an arithmetic number, because the mean of its divisors is an integer number (98171010).

Almost surely, 2^2236421928 is an apocalyptic number.

It is an amenable number.

2236421928 is an abundant number, since it is smaller than the sum of its proper divisors (4046522712).

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

2236421928 is a wasteful number, since it uses less digits than its factorization.

2236421928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311698 (or 311694 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 2236421928 is about 47290.8228729423. The cubic root of 2236421928 is about 1307.7294795410.

The spelling of 2236421928 in words is "two billion, two hundred thirty-six million, four hundred twenty-one thousand, nine hundred twenty-eight".