23748140 has 48 divisors (see below), whose sum is σ = 54072480. Its totient is φ = 8709120.

The previous prime is 23748107. The next prime is 23748161. The reversal of 23748140 is 4184732.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62471 + ... + 62849.

It is an arithmetic number, because the mean of its divisors is an integer number (1126510).

Almost surely, 2^23748140 is an apocalyptic number.

23748140 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 23748140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27036240).

23748140 is an abundant number, since it is smaller than the sum of its proper divisors (30324340).

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

23748140 is a wasteful number, since it uses less digits than its factorization.

23748140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 642 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 23748140 is about 4873.2063366946. The cubic root of 23748140 is about 287.4373499278.

The spelling of 23748140 in words is "twenty-three million, seven hundred forty-eight thousand, one hundred forty".