2223378 has 24 divisors (see below), whose sum is σ = 4855500. Its totient is φ = 735264.

The previous prime is 2223371. The next prime is 2223383. The reversal of 2223378 is 8733222.

It can be written as a sum of positive squares in 2 ways, for example, as 2152089 + 71289 = 1467^2 + 267^2 .

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (2223371) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2268 + ... + 3096.

2^2223378 is an apocalyptic number.

2223378 is an abundant number, since it is smaller than the sum of its proper divisors (2632122).

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

2223378 is a wasteful number, since it uses less digits than its factorization.

2223378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986 (or 983 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 2223378 is about 1491.0995942592. The cubic root of 2223378 is about 130.5182077030.

It can be divided in two parts, 2223 and 378, that added together give a square (2601 = 51²).

The spelling of 2223378 in words is "two million, two hundred twenty-three thousand, three hundred seventy-eight".