2257403 has 2 divisors, whose sum is σ = 2257404. Its totient is φ = 2257402.

The previous prime is 2257397. The next prime is 2257439. The reversal of 2257403 is 3047522.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2257403 - 2¹⁰ = 2256379 is a prime.

It is a super-3 number, since 3×2257403³ = 34510285193933369481, which contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2257483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1128701 + 1128702.

It is an arithmetic number, because the mean of its divisors is an integer number (1128702).

2^2257403 is an apocalyptic number.

2257403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2257403 is an equidigital number, since it uses as much as digits as its factorization.

2257403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 2257403 is about 1502.4656402061. The cubic root of 2257403 is about 131.1806260742.

The spelling of 2257403 in words is "two million, two hundred fifty-seven thousand, four hundred three".