23903730 has 48 divisors (see below), whose sum is σ = 63483264. Its totient is φ = 6237600.

The previous prime is 23903699. The next prime is 23903731. The reversal of 23903730 is 3730932.

It is a junction number, because it is equal to n+sod(n) for n = 23903694 and 23903703.

It is not an unprimeable number, because it can be changed into a prime (23903731) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1405 + ... + 7055.

It is an arithmetic number, because the mean of its divisors is an integer number (1322568).

Almost surely, 2^23903730 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23903730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31741632).

23903730 is an abundant number, since it is smaller than the sum of its proper divisors (39579534).

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

23903730 is a wasteful number, since it uses less digits than its factorization.

23903730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5711 (or 5708 counting only the distinct ones).

The product of its (nonzero) digits is 3402, while the sum is 27.

The square root of 23903730 is about 4889.1440968742. The cubic root of 23903730 is about 288.0637156482.

The spelling of 23903730 in words is "twenty-three million, nine hundred three thousand, seven hundred thirty".