23474440 has 64 divisors (see below), whose sum is σ = 59512320. Its totient is φ = 8256000.

The previous prime is 23474419. The next prime is 23474441. The reversal of 23474440 is 4447432.

It is a Smith number, since the sum of its digits (28) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23474399 and 23474408.

It is not an unprimeable number, because it can be changed into a prime (23474441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12780 + ... + 14500.

It is an arithmetic number, because the mean of its divisors is an integer number (929880).

Almost surely, 2^23474440 is an apocalyptic number.

23474440 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 23474440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29756160).

23474440 is an abundant number, since it is smaller than the sum of its proper divisors (36037880).

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

23474440 is a wasteful number, since it uses less digits than its factorization.

23474440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1774 (or 1770 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 28.

The square root of 23474440 is about 4845.0428274681. The cubic root of 23474440 is about 286.3288310310.

The spelling of 23474440 in words is "twenty-three million, four hundred seventy-four thousand, four hundred forty".