23446220 has 48 divisors (see below), whose sum is σ = 56598528. Its totient is φ = 7992000.

The previous prime is 23446217. The next prime is 23446229. The reversal of 23446220 is 2264432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23446229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30845 + ... + 31595.

It is an arithmetic number, because the mean of its divisors is an integer number (1179136).

Almost surely, 2^23446220 is an apocalyptic number.

23446220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23446220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28299264).

23446220 is an abundant number, since it is smaller than the sum of its proper divisors (33152308).

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

23446220 is a wasteful number, since it uses less digits than its factorization.

23446220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990 (or 988 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 23446220 is about 4842.1296967347. The cubic root of 23446220 is about 286.2140474668.

The spelling of 23446220 in words is "twenty-three million, four hundred forty-six thousand, two hundred twenty".