2281473 has 8 divisors (see below), whose sum is σ = 3380000. Its totient is φ = 1520964.

The previous prime is 2281429. The next prime is 2281481. The reversal of 2281473 is 3741822.

It is not a de Polignac number, because 2281473 - 2¹² = 2277377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 84499 = 2281473 / (2 + 2 + 8 + 1 + 4 + 7 + 3).

It is an Ulam number.

It is a Duffinian number.

2281473 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2281403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42223 + ... + 42276.

It is an arithmetic number, because the mean of its divisors is an integer number (422500).

It is a Proth number, since it is equal to 557 ⋅ 2¹² + 1 and 557 < 2¹².

2^2281473 is an apocalyptic number.

It is an amenable number.

2281473 is a deficient number, since it is larger than the sum of its proper divisors (1098527).

2281473 is an equidigital number, since it uses as much as digits as its factorization.

2281473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84508 (or 84502 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2281473 is about 1510.4545673406. The cubic root of 2281473 is about 131.6452250153.

It can be divided in two parts, 228147 and 3, that added together give a triangular number (228150 = T₆₇₅).

The spelling of 2281473 in words is "two million, two hundred eighty-one thousand, four hundred seventy-three".