23220635 has 8 divisors (see below), whose sum is σ = 27969216. Its totient is φ = 18506880.

The previous prime is 23220601. The next prime is 23220649. The reversal of 23220635 is 53602232.

It is a happy number.

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

It is not a de Polignac number, because 23220635 - 2¹⁰ = 23219611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23220635.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7214 + ... + 9923.

It is an arithmetic number, because the mean of its divisors is an integer number (3496152).

Almost surely, 2^23220635 is an apocalyptic number.

23220635 is a deficient number, since it is larger than the sum of its proper divisors (4748581).

23220635 is a wasteful number, since it uses less digits than its factorization.

23220635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17413.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 23220635 is about 4818.7794097676. The cubic root of 23220635 is about 285.2931629926.

Adding to 23220635 its reverse (53602232), we get a palindrome (76822867).

The spelling of 23220635 in words is "twenty-three million, two hundred twenty thousand, six hundred thirty-five".