2223928 has 32 divisors (see below), whose sum is σ = 4815360. Its totient is φ = 943200.

The previous prime is 2223911. The next prime is 2223937. The reversal of 2223928 is 8293222.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2² + 2¹⁵ + 2²⁰ + 3⁷ + 9⁵ + 2²⁰ + 8⁵ .

It is a junction number, because it is equal to n+sod(n) for n = 2223896 and 2223905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8325 + ... + 8587.

It is an arithmetic number, because the mean of its divisors is an integer number (150480).

2^2223928 is an apocalyptic number.

2223928 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2223928 is an abundant number, since it is smaller than the sum of its proper divisors (2591432).

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

2223928 is a wasteful number, since it uses less digits than its factorization.

2223928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427 (or 423 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 2223928 is about 1491.2840105091. The cubic root of 2223928 is about 130.5289689705.

The spelling of 2223928 in words is "two million, two hundred twenty-three thousand, nine hundred twenty-eight".