23222620 has 24 divisors (see below), whose sum is σ = 50450400. Its totient is φ = 8968512.

The previous prime is 23222593. The next prime is 23222621. The reversal of 23222620 is 2622232.

23222620 = T₁₂₅₁ + T₁₂₅₂ + ... + T₁₂₇₉.

23222620 = 326² + 327² + ... + 470².

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222621) 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, 19440 + ... + 20599.

It is an arithmetic number, because the mean of its divisors is an integer number (2102100).

Almost surely, 2^23222620 is an apocalyptic number.

23222620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23222620 is an abundant number, since it is smaller than the sum of its proper divisors (27227780).

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

23222620 is a wasteful number, since it uses less digits than its factorization.

23222620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40077 (or 40075 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23222620 is about 4818.9853703866. The cubic root of 23222620 is about 285.3012921242.

Adding to 23222620 its reverse (2622232), we get a palindrome (25844852).

The spelling of 23222620 in words is "twenty-three million, two hundred twenty-two thousand, six hundred twenty".