20029473 has 12 divisors (see below), whose sum is σ = 29547648. Its totient is φ = 13068600.

The previous prime is 20029453. The next prime is 20029489. The reversal of 20029473 is 37492002.

It is not a de Polignac number, because 20029473 - 2¹⁷ = 19898401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20029403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23253 + ... + 24098.

It is an arithmetic number, because the mean of its divisors is an integer number (2462304).

Almost surely, 2^20029473 is an apocalyptic number.

It is an amenable number.

20029473 is a deficient number, since it is larger than the sum of its proper divisors (9518175).

20029473 is a wasteful number, since it uses less digits than its factorization.

20029473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47404 (or 47401 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 20029473 is about 4475.4299234822. The cubic root of 20029473 is about 271.5750329332.

It can be divided in two parts, 20029 and 473, that added together give a palindrome (20502).

The spelling of 20029473 in words is "twenty million, twenty-nine thousand, four hundred seventy-three".