22602493 has 4 divisors (see below), whose sum is σ = 22619740. Its totient is φ = 22585248.

The previous prime is 22602467. The next prime is 22602497. The reversal of 22602493 is 39420622.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 39420622 = 2 ⋅19710311.

It can be written as a sum of positive squares in 2 ways, for example, as 10478169 + 12124324 = 3237^2 + 3482^2 .

It is a cyclic number.

It is not a de Polignac number, because 22602493 - 2²¹ = 20505341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22602497) 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, 6480 + ... + 9337.

It is an arithmetic number, because the mean of its divisors is an integer number (5654935).

Almost surely, 2^22602493 is an apocalyptic number.

It is an amenable number.

22602493 is a deficient number, since it is larger than the sum of its proper divisors (17247).

22602493 is a wasteful number, since it uses less digits than its factorization.

22602493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17246.

The product of its (nonzero) digits is 5184, while the sum is 28.

The square root of 22602493 is about 4754.2079256171. The cubic root of 22602493 is about 282.7388243296.

It can be divided in two parts, 2260 and 2493, that added together give a triangular number (4753 = T₉₇).

The spelling of 22602493 in words is "twenty-two million, six hundred two thousand, four hundred ninety-three".