23346720 has 144 divisors (see below), whose sum is σ = 82397952. Its totient is φ = 6013440.

The previous prime is 23346707. The next prime is 23346737. The reversal of 23346720 is 2764332.

It is a tau number, because it is divible by the number of its divisors (144).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44379 + ... + 44901.

It is an arithmetic number, because the mean of its divisors is an integer number (572208).

Almost surely, 2^23346720 is an apocalyptic number.

23346720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

23346720 is the 2790-th octagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23346720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41198976).

23346720 is an abundant number, since it is smaller than the sum of its proper divisors (59051232).

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

23346720 is a wasteful number, since it uses less digits than its factorization.

23346720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 575 (or 564 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 27.

The square root of 23346720 is about 4831.8443683546. The cubic root of 23346720 is about 285.8085993401.

The spelling of 23346720 in words is "twenty-three million, three hundred forty-six thousand, seven hundred twenty".