23143400 has 96 divisors (see below), whose sum is σ = 62734080. Its totient is φ = 7776000.

The previous prime is 23143397. The next prime is 23143423. The reversal of 23143400 is 434132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 85265 + ... + 85535.

It is an arithmetic number, because the mean of its divisors is an integer number (653480).

Almost surely, 2^23143400 is an apocalyptic number.

23143400 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 23143400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31367040).

23143400 is an abundant number, since it is smaller than the sum of its proper divisors (39590680).

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

23143400 is a wasteful number, since it uses less digits than its factorization.

23143400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 23143400 is about 4810.7587759105. The cubic root of 23143400 is about 284.9765036544.

Adding to 23143400 its reverse (434132), we get a palindrome (23577532).

The spelling of 23143400 in words is "twenty-three million, one hundred forty-three thousand, four hundred".