22029493 has 4 divisors (see below), whose sum is σ = 23188960. Its totient is φ = 20870028.

The previous prime is 22029487. The next prime is 22029529. The reversal of 22029493 is 39492022.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22029493 - 2⁵ = 22029461 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 (22029593) 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, 579705 + ... + 579742.

It is an arithmetic number, because the mean of its divisors is an integer number (5797240).

Almost surely, 2^22029493 is an apocalyptic number.

It is an amenable number.

22029493 is a deficient number, since it is larger than the sum of its proper divisors (1159467).

22029493 is a wasteful number, since it uses less digits than its factorization.

22029493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159466.

The product of its (nonzero) digits is 7776, while the sum is 31.

The square root of 22029493 is about 4693.5586712004. The cubic root of 22029493 is about 280.3290901025.

It can be divided in two parts, 22029 and 493, that added together give a palindrome (22522).

The spelling of 22029493 in words is "twenty-two million, twenty-nine thousand, four hundred ninety-three".