23061800 has 24 divisors (see below), whose sum is σ = 53619150. Its totient is φ = 9224640.

The previous prime is 23061791. The next prime is 23061811. The reversal of 23061800 is 816032.

It can be written as a sum of positive squares in 3 ways, for example, as 12264004 + 10797796 = 3502^2 + 3286^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 57455 + ... + 57854.

Almost surely, 2^23061800 is an apocalyptic number.

23061800 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23061800 is an abundant number, since it is smaller than the sum of its proper divisors (30557350).

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

23061800 is a wasteful number, since it uses less digits than its factorization.

23061800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115325 (or 115316 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 23061800 is about 4802.2702964327. The cubic root of 23061800 is about 284.6411817564.

Adding to 23061800 its reverse (816032), we get a palindrome (23877832).

The spelling of 23061800 in words is "twenty-three million, sixty-one thousand, eight hundred".