23971122 has 144 divisors (see below), whose sum is σ = 68470272. Its totient is φ = 5909760.

The previous prime is 23971121. The next prime is 23971127. The reversal of 23971122 is 22117932.

It is a super-2 number, since 2×23971122² = 1149229379877768, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (23971121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 773247 + ... + 773277.

It is an arithmetic number, because the mean of its divisors is an integer number (475488).

Almost surely, 2^23971122 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23971122, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34235136).

23971122 is an abundant number, since it is smaller than the sum of its proper divisors (44499150).

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

23971122 is a wasteful number, since it uses less digits than its factorization.

23971122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101 (or 79 counting only the distinct ones).

The product of its digits is 1512, while the sum is 27.

The square root of 23971122 is about 4896.0312499003. The cubic root of 23971122 is about 288.3341751751.

The spelling of 23971122 in words is "twenty-three million, nine hundred seventy-one thousand, one hundred twenty-two".