23332428 has 72 divisors (see below), whose sum is σ = 70383600. Its totient is φ = 6664896.

The previous prime is 23332423. The next prime is 23332457. The reversal of 23332428 is 82423332.

23332428 is a `hidden beast` number, since 233 + 3 + 2 + 428 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (23332423) 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, 3088 + ... + 7496.

It is an arithmetic number, because the mean of its divisors is an integer number (977550).

Almost surely, 2^23332428 is an apocalyptic number.

23332428 is a gapful number since it is divisible by the number (28) 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 23332428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35191800).

23332428 is an abundant number, since it is smaller than the sum of its proper divisors (47051172).

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

23332428 is a wasteful number, since it uses less digits than its factorization.

23332428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4436 (or 4421 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 23332428 is about 4830.3652035845. The cubic root of 23332428 is about 285.7502669447.

It can be divided in two parts, 2333 and 2428, that added together give a square (4761 = 69²).

The spelling of 23332428 in words is "twenty-three million, three hundred thirty-two thousand, four hundred twenty-eight".