23226690 has 16 divisors (see below), whose sum is σ = 55744128. Its totient is φ = 6193776.

The previous prime is 23226677. The next prime is 23226691. The reversal of 23226690 is 9662232.

It is a super-2 number, since 2×23226690² = 1078958256712200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 774223 = 23226690 / (2 + 3 + 2 + 2 + 6 + 6 + 9 + 0).

It is not an unprimeable number, because it can be changed into a prime (23226691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 387082 + ... + 387141.

It is an arithmetic number, because the mean of its divisors is an integer number (3484008).

Almost surely, 2^23226690 is an apocalyptic number.

23226690 is an abundant number, since it is smaller than the sum of its proper divisors (32517438).

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

23226690 is a wasteful number, since it uses less digits than its factorization.

23226690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774233.

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

The square root of 23226690 is about 4819.4076399491. The cubic root of 23226690 is about 285.3179584669.

The spelling of 23226690 in words is "twenty-three million, two hundred twenty-six thousand, six hundred ninety".