23801780 has 48 divisors (see below), whose sum is σ = 53101440. Its totient is φ = 8942208.

The previous prime is 23801759. The next prime is 23801807. The reversal of 23801780 is 8710832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26702 + ... + 27578.

It is an arithmetic number, because the mean of its divisors is an integer number (1106280).

Almost surely, 2^23801780 is an apocalyptic number.

23801780 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 23801780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26550720).

23801780 is an abundant number, since it is smaller than the sum of its proper divisors (29299660).

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

23801780 is a wasteful number, since it uses less digits than its factorization.

23801780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968 (or 966 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 23801780 is about 4878.7067958630. The cubic root of 23801780 is about 287.6535990833.

The spelling of 23801780 in words is "twenty-three million, eight hundred one thousand, seven hundred eighty".