22030509 has 8 divisors (see below), whose sum is σ = 29445472. Its totient is φ = 14651280.

The previous prime is 22030483. The next prime is 22030511. The reversal of 22030509 is 90503022.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 22030509 - 2⁷ = 22030381 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 (22030579) 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, 7459 + ... + 9984.

It is an arithmetic number, because the mean of its divisors is an integer number (3680684).

Almost surely, 2^22030509 is an apocalyptic number.

It is an amenable number.

22030509 is a deficient number, since it is larger than the sum of its proper divisors (7414963).

22030509 is a wasteful number, since it uses less digits than its factorization.

22030509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 22030509 is about 4693.6669033923. Note that the first 3 decimals coincide. The cubic root of 22030509 is about 280.3333996279. Note that the first 4 decimals are identical.

The spelling of 22030509 in words is "twenty-two million, thirty thousand, five hundred nine".