22325421 has 8 divisors (see below), whose sum is σ = 29804544. Its totient is φ = 14864960.

The previous prime is 22325327. The next prime is 22325431. The reversal of 22325421 is 12452322.

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

It is a cyclic number.

It is not a de Polignac number, because 22325421 - 2⁹ = 22324909 is a prime.

It is a super-3 number, since 3×22325421³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22325431) 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, 1581 + ... + 6866.

It is an arithmetic number, because the mean of its divisors is an integer number (3725568).

Almost surely, 2^22325421 is an apocalyptic number.

It is an amenable number.

22325421 is a deficient number, since it is larger than the sum of its proper divisors (7479123).

22325421 is an equidigital number, since it uses as much as digits as its factorization.

22325421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9331.

The product of its digits is 960, while the sum is 21.

The square root of 22325421 is about 4724.9784126491. The cubic root of 22325421 is about 281.5787559099.

Adding to 22325421 its reverse (12452322), we get a palindrome (34777743).

The spelling of 22325421 in words is "twenty-two million, three hundred twenty-five thousand, four hundred twenty-one".