23220038 has 4 divisors (see below), whose sum is σ = 34830060. Its totient is φ = 11610018.

The previous prime is 23220037. The next prime is 23220047. The reversal of 23220038 is 83002232.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5805008 + ... + 5805011.

It is an arithmetic number, because the mean of its divisors is an integer number (8707515).

Almost surely, 2^23220038 is an apocalyptic number.

23220038 is a deficient number, since it is larger than the sum of its proper divisors (11610022).

23220038 is a wasteful number, since it uses less digits than its factorization.

23220038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11610021.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 23220038 is about 4818.7174642222. The cubic root of 23220038 is about 285.2907180196.

The spelling of 23220038 in words is "twenty-three million, two hundred twenty thousand, thirty-eight".