23650020 has 72 divisors (see below), whose sum is σ = 72648576. Its totient is φ = 6226752.

The previous prime is 23650013. The next prime is 23650021. The reversal of 23650020 is 2005632.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 23649975 and 23650002.

It is not an unprimeable number, because it can be changed into a prime (23650021) 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, 14149 + ... + 15731.

It is an arithmetic number, because the mean of its divisors is an integer number (1009008).

Almost surely, 2^23650020 is an apocalyptic number.

23650020 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 23650020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36324288).

23650020 is an abundant number, since it is smaller than the sum of its proper divisors (48998556).

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

23650020 is a wasteful number, since it uses less digits than its factorization.

23650020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1681 (or 1676 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 23650020 is about 4863.1286226050. The cubic root of 23650020 is about 287.0409359391.

Adding to 23650020 its reverse (2005632), we get a palindrome (25655652).

The spelling of 23650020 in words is "twenty-three million, six hundred fifty thousand, twenty".