23196840 has 128 divisors (see below), whose sum is σ = 75116160. Its totient is φ = 5709824.

The previous prime is 23196829. The next prime is 23196841. The reversal of 23196840 is 4869132.

It is not an unprimeable number, because it can be changed into a prime (23196841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169252 + ... + 169388.

It is an arithmetic number, because the mean of its divisors is an integer number (586845).

Almost surely, 2^23196840 is an apocalyptic number.

23196840 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 23196840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37558080).

23196840 is an abundant number, since it is smaller than the sum of its proper divisors (51919320).

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

23196840 is a wasteful number, since it uses less digits than its factorization.

23196840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 247 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 23196840 is about 4816.3097907008. The cubic root of 23196840 is about 285.1956797131.

The spelling of 23196840 in words is "twenty-three million, one hundred ninety-six thousand, eight hundred forty".