2378456 has 16 divisors (see below), whose sum is σ = 4496640. Its totient is φ = 1179360.

The previous prime is 2378447. The next prime is 2378461. The reversal of 2378456 is 6548732.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155 + ... + 2186.

It is an arithmetic number, because the mean of its divisors is an integer number (281040).

2^2378456 is an apocalyptic number.

It is an amenable number.

2378456 is a deficient number, since it is larger than the sum of its proper divisors (2118184).

2378456 is a wasteful number, since it uses less digits than its factorization.

2378456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2474 (or 2470 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 2378456 is about 1542.2243675938. The cubic root of 2378456 is about 133.4847668330.

The spelling of 2378456 in words is "two million, three hundred seventy-eight thousand, four hundred fifty-six".