23297430 has 128 divisors (see below), whose sum is σ = 65028096. Its totient is φ = 5299200.

The previous prime is 23297423. The next prime is 23297489. The reversal of 23297430 is 3479232.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 495667 + ... + 495713.

It is an arithmetic number, because the mean of its divisors is an integer number (508032).

Almost surely, 2^23297430 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23297430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32514048).

23297430 is an abundant number, since it is smaller than the sum of its proper divisors (41730666).

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

23297430 is a wasteful number, since it uses less digits than its factorization.

23297430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 23297430 is about 4826.7411366262. The cubic root of 23297430 is about 285.6073229376.

The spelling of 23297430 in words is "twenty-three million, two hundred ninety-seven thousand, four hundred thirty".