2257470 has 48 divisors (see below), whose sum is σ = 6093360. Its totient is φ = 601344.

The previous prime is 2257441. The next prime is 2257471. The reversal of 2257470 is 747522.

2257470 is a `hidden beast` number, since 22 + 574 + 70 = 666.

2257470 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1966 + ... + 2894.

It is an arithmetic number, because the mean of its divisors is an integer number (126945).

2^2257470 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2257470, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3046680).

2257470 is an abundant number, since it is smaller than the sum of its proper divisors (3835890).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2257470 is an equidigital number, since it uses as much as digits as its factorization.

2257470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951 (or 939 counting only the distinct ones).

The product of its (nonzero) digits is 3920, while the sum is 27.

The square root of 2257470 is about 1502.4879367236. The cubic root of 2257470 is about 131.1819238804.

The spelling of 2257470 in words is "two million, two hundred fifty-seven thousand, four hundred seventy".