23507748 has 144 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 6504960.

The previous prime is 23507747. The next prime is 23507791. The reversal of 23507748 is 84770532.

It is a super-2 number, since 2×23507748² = 1105228432063008, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (23507741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 264088 + ... + 264176.

It is an arithmetic number, because the mean of its divisors is an integer number (491400).

Almost surely, 2^23507748 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23507748, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35380800).

23507748 is an abundant number, since it is smaller than the sum of its proper divisors (47253852).

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

23507748 is a wasteful number, since it uses less digits than its factorization.

23507748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

The square root of 23507748 is about 4848.4789367388. The cubic root of 23507748 is about 286.4641914988.

The spelling of 23507748 in words is "twenty-three million, five hundred seven thousand, seven hundred forty-eight".