2722403 has 4 divisors (see below), whose sum is σ = 2725800. Its totient is φ = 2719008.

The previous prime is 2722399. The next prime is 2722417. The reversal of 2722403 is 3042272.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2722403 - 2² = 2722399 is a prime.

It is a super-2 number, since 2×2722403² = 14822956188818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2752403) 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, 248 + ... + 2346.

It is an arithmetic number, because the mean of its divisors is an integer number (681450).

2^2722403 is an apocalyptic number.

2722403 is a deficient number, since it is larger than the sum of its proper divisors (3397).

2722403 is a wasteful number, since it uses less digits than its factorization.

2722403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3396.

The product of its (nonzero) digits is 672, while the sum is 20.

The square root of 2722403 is about 1649.9706057988. The cubic root of 2722403 is about 139.6317362295.

Adding to 2722403 its reverse (3042272), we get a palindrome (5764675).

It can be divided in two parts, 2722 and 403, that added together give a 5-th power (3125 = 5⁵).

The spelling of 2722403 in words is "two million, seven hundred twenty-two thousand, four hundred three".