23420328 has 16 divisors (see below), whose sum is σ = 58550880. Its totient is φ = 7806768.

The previous prime is 23420323. The next prime is 23420347. The reversal of 23420328 is 82302432.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 975847 = 23420328 / (2 + 3 + 4 + 2 + 0 + 3 + 2 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 23420298 and 23420307.

It is not an unprimeable number, because it can be changed into a prime (23420323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487900 + ... + 487947.

It is an arithmetic number, because the mean of its divisors is an integer number (3659430).

Almost surely, 2^23420328 is an apocalyptic number.

It is an amenable number.

23420328 is an abundant number, since it is smaller than the sum of its proper divisors (35130552).

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

23420328 is a wasteful number, since it uses less digits than its factorization.

23420328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975856 (or 975852 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 23420328 is about 4839.4553412548. The cubic root of 23420328 is about 286.1086518894.

The spelling of 23420328 in words is "twenty-three million, four hundred twenty thousand, three hundred twenty-eight".