23419221 has 16 divisors (see below), whose sum is σ = 37238784. Its totient is φ = 12800304.

The previous prime is 23419189. The next prime is 23419259. The reversal of 23419221 is 12291432.

It is not a de Polignac number, because 23419221 - 2⁵ = 23419189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23419191 and 23419200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23419271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23761 + ... + 24726.

It is an arithmetic number, because the mean of its divisors is an integer number (2327424).

Almost surely, 2^23419221 is an apocalyptic number.

23419221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23419221 is a deficient number, since it is larger than the sum of its proper divisors (13819563).

23419221 is a wasteful number, since it uses less digits than its factorization.

23419221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48520.

The product of its digits is 864, while the sum is 24.

The square root of 23419221 is about 4839.3409675285. The cubic root of 23419221 is about 286.1041440210.

The spelling of 23419221 in words is "twenty-three million, four hundred nineteen thousand, two hundred twenty-one".