20223954 has 12 divisors (see below), whose sum is σ = 43818606. Its totient is φ = 6741312.

The previous prime is 20223953. The next prime is 20223977. The reversal of 20223954 is 45932202.

It can be written as a sum of positive squares in only one way, i.e., 20007729 + 216225 = 4473^2 + 465^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20223953) 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 5 ways as a sum of consecutive naturals, for example, 561759 + ... + 561794.

Almost surely, 2^20223954 is an apocalyptic number.

20223954 is an abundant number, since it is smaller than the sum of its proper divisors (23594652).

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

20223954 is a wasteful number, since it uses less digits than its factorization.

20223954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123561 (or 1123558 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 20223954 is about 4497.1050688193. The cubic root of 20223954 is about 272.4511777415.

The spelling of 20223954 in words is "twenty million, two hundred twenty-three thousand, nine hundred fifty-four".