23299780 has 48 divisors (see below), whose sum is σ = 57125376. Its totient is φ = 7816320.

The previous prime is 23299777. The next prime is 23299799. The reversal of 23299780 is 8799232.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

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, 4810 + ... + 8350.

It is an arithmetic number, because the mean of its divisors is an integer number (1190112).

Almost surely, 2^23299780 is an apocalyptic number.

23299780 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 23299780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28562688).

23299780 is an abundant number, since it is smaller than the sum of its proper divisors (33825596).

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

23299780 is a wasteful number, since it uses less digits than its factorization.

23299780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3604 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 23299780 is about 4826.9845659583. The cubic root of 23299780 is about 285.6169256368.

The spelling of 23299780 in words is "twenty-three million, two hundred ninety-nine thousand, seven hundred eighty".