2403073 has 4 divisors (see below), whose sum is σ = 2448468. Its totient is φ = 2357680.

The previous prime is 2403061. The next prime is 2403077. The reversal of 2403073 is 3703042.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 628849 + 1774224 = 793^2 + 1332^2 .

It is a cyclic number.

It is not a de Polignac number, because 2403073 - 2¹³ = 2394881 is a prime.

It is a Duffinian number.

2403073 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2403073.

It is not an unprimeable number, because it can be changed into a prime (2403077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22618 + ... + 22723.

It is an arithmetic number, because the mean of its divisors is an integer number (612117).

2^2403073 is an apocalyptic number.

It is an amenable number.

2403073 is a deficient number, since it is larger than the sum of its proper divisors (45395).

2403073 is an equidigital number, since it uses as much as digits as its factorization.

2403073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45394.

The product of its (nonzero) digits is 504, while the sum is 19.

The square root of 2403073 is about 1550.1848276899. The cubic root of 2403073 is about 133.9437091850.

The spelling of 2403073 in words is "two million, four hundred three thousand, seventy-three".