23309222 has 8 divisors (see below), whose sum is σ = 35385336. Its totient is φ = 11514112.

The previous prime is 23309213. The next prime is 23309249. The reversal of 23309222 is 22290332.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70043 + ... + 70374.

It is an arithmetic number, because the mean of its divisors is an integer number (4423167).

Almost surely, 2^23309222 is an apocalyptic number.

23309222 is a deficient number, since it is larger than the sum of its proper divisors (12076114).

23309222 is a wasteful number, since it uses less digits than its factorization.

23309222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140502.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23309222 is about 4827.9625102107. The cubic root of 23309222 is about 285.6555015492.

Adding to 23309222 its reverse (22290332), we get a palindrome (45599554).

It can be divided in two parts, 23 and 309222, that multiplied together give a triangular number (7112106 = T₃₇₇₁).

The spelling of 23309222 in words is "twenty-three million, three hundred nine thousand, two hundred twenty-two".