2257378 has 8 divisors (see below), whose sum is σ = 3468780. Its totient is φ = 1101120.

The previous prime is 2257373. The next prime is 2257391. The reversal of 2257378 is 8737522.

It can be written as a sum of positive squares in 2 ways, for example, as 1979649 + 277729 = 1407^2 + 527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (2257373) 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, 13683 + ... + 13846.

2^2257378 is an apocalyptic number.

2257378 is a deficient number, since it is larger than the sum of its proper divisors (1211402).

2257378 is a wasteful number, since it uses less digits than its factorization.

2257378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27572.

The product of its digits is 23520, while the sum is 34.

The square root of 2257378 is about 1502.4573205253. The cubic root of 2257378 is about 131.1801418115.

The spelling of 2257378 in words is "two million, two hundred fifty-seven thousand, three hundred seventy-eight".