2257478 has 8 divisors (see below), whose sum is σ = 3394872. Its totient is φ = 1125856.

The previous prime is 2257471. The next prime is 2257483. The reversal of 2257478 is 8747522.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2257471) 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, 275 + ... + 2142.

It is an arithmetic number, because the mean of its divisors is an integer number (424359).

2^2257478 is an apocalyptic number.

2257478 is a deficient number, since it is larger than the sum of its proper divisors (1137394).

2257478 is a wasteful number, since it uses less digits than its factorization.

2257478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886.

The product of its digits is 31360, while the sum is 35.

The square root of 2257478 is about 1502.4905989723. The cubic root of 2257478 is about 131.1820788406.

The spelling of 2257478 in words is "two million, two hundred fifty-seven thousand, four hundred seventy-eight".