23194780 has 72 divisors (see below), whose sum is σ = 57945888. Its totient is φ = 7639296.

The previous prime is 23194757. The next prime is 23194781. The reversal of 23194780 is 8749132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23194781) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 117642 + ... + 117838.

It is an arithmetic number, because the mean of its divisors is an integer number (804804).

Almost surely, 2^23194780 is an apocalyptic number.

23194780 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 23194780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28972944).

23194780 is an abundant number, since it is smaller than the sum of its proper divisors (34751108).

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

23194780 is a wasteful number, since it uses less digits than its factorization.

23194780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 240 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 23194780 is about 4816.0959292772. The cubic root of 23194780 is about 285.1872371768.

The spelling of 23194780 in words is "twenty-three million, one hundred ninety-four thousand, seven hundred eighty".