2193963928 has 32 divisors (see below), whose sum is σ = 4622738400. Its totient is φ = 968571648.

The previous prime is 2193963923. The next prime is 2193963943. The reversal of 2193963928 is 8293693912.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2193963923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 456213 + ... + 460996.

It is an arithmetic number, because the mean of its divisors is an integer number (144460575).

Almost surely, 2^2193963928 is an apocalyptic number.

It is an amenable number.

2193963928 is an abundant number, since it is smaller than the sum of its proper divisors (2428774472).

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

2193963928 is a wasteful number, since it uses less digits than its factorization.

2193963928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917251 (or 917247 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 52.

The square root of 2193963928 is about 46839.7686586943. The cubic root of 2193963928 is about 1299.4008931740.

The spelling of 2193963928 in words is "two billion, one hundred ninety-three million, nine hundred sixty-three thousand, nine hundred twenty-eight".