23867140 has 48 divisors (see below), whose sum is σ = 55105344. Its totient is φ = 8611200.

The previous prime is 23867089. The next prime is 23867143. The reversal of 23867140 is 4176832.

It is not an unprimeable number, because it can be changed into a prime (23867143) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 34195 + ... + 34885.

It is an arithmetic number, because the mean of its divisors is an integer number (1148028).

Almost surely, 2^23867140 is an apocalyptic number.

23867140 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 23867140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27552672).

23867140 is an abundant number, since it is smaller than the sum of its proper divisors (31238204).

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

23867140 is a wasteful number, since it uses less digits than its factorization.

23867140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868 (or 866 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 31.

The square root of 23867140 is about 4885.4007000450. The cubic root of 23867140 is about 287.9166586268.

The spelling of 23867140 in words is "twenty-three million, eight hundred sixty-seven thousand, one hundred forty".