20023408 has 10 divisors (see below), whose sum is σ = 38795384. Its totient is φ = 10011696.

The previous prime is 20023403. The next prime is 20023411. The reversal of 20023408 is 80432002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 625716 + ... + 625747.

Almost surely, 2^20023408 is an apocalyptic number.

It is an amenable number.

20023408 is a deficient number, since it is larger than the sum of its proper divisors (18771976).

20023408 is a wasteful number, since it uses less digits than its factorization.

20023408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1251471 (or 1251465 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 20023408 is about 4474.7522836465. The cubic root of 20023408 is about 271.5476188511.

The spelling of 20023408 in words is "twenty million, twenty-three thousand, four hundred eight".