2281457 has 8 divisors (see below), whose sum is σ = 2362536. Its totient is φ = 2201472.

The previous prime is 2281429. The next prime is 2281481. The reversal of 2281457 is 7541822.

It can be written as a sum of positive squares in 4 ways, for example, as 703921 + 1577536 = 839^2 + 1256^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2281457 - 2¹⁰ = 2280433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2281057) 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 in 7 ways as a sum of consecutive naturals, for example, 7133 + ... + 7445.

It is an arithmetic number, because the mean of its divisors is an integer number (295317).

2^2281457 is an apocalyptic number.

It is an amenable number.

2281457 is a deficient number, since it is larger than the sum of its proper divisors (81079).

2281457 is a wasteful number, since it uses less digits than its factorization.

2281457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547.

The product of its digits is 4480, while the sum is 29.

The square root of 2281457 is about 1510.4492709125. The cubic root of 2281457 is about 131.6449172713.

The spelling of 2281457 in words is "two million, two hundred eighty-one thousand, four hundred fifty-seven".