23690226 has 48 divisors (see below), whose sum is σ = 58030560. Its totient is φ = 6410880.

The previous prime is 23690221. The next prime is 23690237. The reversal of 23690226 is 62209632.

It is a super-2 number, since 2×23690226² = 1122453615862152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23690193 and 23690202.

It is not an unprimeable number, because it can be changed into a prime (23690221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3466 + ... + 7706.

It is an arithmetic number, because the mean of its divisors is an integer number (1208970).

Almost surely, 2^23690226 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23690226, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29015280).

23690226 is an abundant number, since it is smaller than the sum of its proper divisors (34340334).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23690226 is a wasteful number, since it uses less digits than its factorization.

23690226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4279 (or 4272 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 23690226 is about 4867.2606258552. The cubic root of 23690226 is about 287.2035042881.

Adding to 23690226 its reverse (62209632), we get a palindrome (85899858).

The spelling of 23690226 in words is "twenty-three million, six hundred ninety thousand, two hundred twenty-six".