23670428 has 12 divisors (see below), whose sum is σ = 43603560. Its totient is φ = 11212272.

The previous prime is 23670421. The next prime is 23670463. The reversal of 23670428 is 82407632.

It is a junction number, because it is equal to n+sod(n) for n = 23670394 and 23670403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23670421) 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, 155651 + ... + 155802.

It is an arithmetic number, because the mean of its divisors is an integer number (3633630).

Almost surely, 2^23670428 is an apocalyptic number.

It is an amenable number.

23670428 is a deficient number, since it is larger than the sum of its proper divisors (19933132).

23670428 is a wasteful number, since it uses less digits than its factorization.

23670428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311476 (or 311474 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 23670428 is about 4865.2264078869. The cubic root of 23670428 is about 287.1234763522.

The spelling of 23670428 in words is "twenty-three million, six hundred seventy thousand, four hundred twenty-eight".