2257388 has 12 divisors (see below), whose sum is σ = 4514832. Its totient is φ = 967440.

The previous prime is 2257373. The next prime is 2257391. The reversal of 2257388 is 8837522.

It is a happy number.

2257388 is digitally balanced in base 2 and base 5, because in such bases it contains all the possibile digits an equal number of times.

2257388 is an admirable number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40283 + ... + 40338.

It is an arithmetic number, because the mean of its divisors is an integer number (376236).

2^2257388 is an apocalyptic number.

2257388 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

2257388 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2257388 is a wasteful number, since it uses less digits than its factorization.

2257388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80632 (or 80630 counting only the distinct ones).

The product of its digits is 26880, while the sum is 35.

The square root of 2257388 is about 1502.4606484031. The cubic root of 2257388 is about 131.1803355170.

The spelling of 2257388 in words is "two million, two hundred fifty-seven thousand, three hundred eighty-eight".