22034431 has 4 divisors (see below), whose sum is σ = 23330592. Its totient is φ = 20738272.

The previous prime is 22034429. The next prime is 22034449. The reversal of 22034431 is 13443022.

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

It is a cyclic number.

It is not a de Polignac number, because 22034431 - 2¹ = 22034429 is a prime.

It is a super-2 number, since 2×22034431² = 971032298987522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22034399 and 22034408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22034401) 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, 648055 + ... + 648088.

It is an arithmetic number, because the mean of its divisors is an integer number (5832648).

Almost surely, 2^22034431 is an apocalyptic number.

22034431 is a deficient number, since it is larger than the sum of its proper divisors (1296161).

22034431 is a wasteful number, since it uses less digits than its factorization.

22034431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1296160.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 22034431 is about 4694.0846818096. The cubic root of 22034431 is about 280.3500341710.

Adding to 22034431 its reverse (13443022), we get a palindrome (35477453).

The spelling of 22034431 in words is "twenty-two million, thirty-four thousand, four hundred thirty-one".