2247904 has 24 divisors (see below), whose sum is σ = 4460400. Its totient is φ = 1115136.

The previous prime is 2247901. The next prime is 2247913. The reversal of 2247904 is 4097422.

2247904 = 155² + 156² + ... + 218².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2247901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6192 + ... + 6544.

It is an arithmetic number, because the mean of its divisors is an integer number (185850).

2^2247904 is an apocalyptic number.

It is an amenable number.

2247904 is a deficient number, since it is larger than the sum of its proper divisors (2212496).

2247904 is a wasteful number, since it uses less digits than its factorization.

2247904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 554 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 2247904 is about 1499.3011705458. The cubic root of 2247904 is about 130.9963676323.

It can be divided in two parts, 224 and 7904, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 2247904 in words is "two million, two hundred forty-seven thousand, nine hundred four".