2229904 has 10 divisors (see below), whose sum is σ = 4320470. Its totient is φ = 1114944.

The previous prime is 2229893. The next prime is 2229917. The reversal of 2229904 is 4099222.

It is a happy number.

2229904 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1557504 + 672400 = 1248^2 + 820^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69669 + ... + 69700.

It is an arithmetic number, because the mean of its divisors is an integer number (432047).

2^2229904 is an apocalyptic number.

It is an amenable number.

2229904 is a deficient number, since it is larger than the sum of its proper divisors (2090566).

2229904 is a wasteful number, since it uses less digits than its factorization.

2229904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139377 (or 139371 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2229904 is about 1493.2863087834. The cubic root of 2229904 is about 130.6457808258.

The spelling of 2229904 in words is "two million, two hundred twenty-nine thousand, nine hundred four".