20471034 has 8 divisors (see below), whose sum is σ = 40942080. Its totient is φ = 6823676.

The previous prime is 20471029. The next prime is 20471041. The reversal of 20471034 is 43017402.

It is a sphenic number, since it is the product of 3 distinct primes.

20471034 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20471034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1705914 + ... + 1705925.

It is an arithmetic number, because the mean of its divisors is an integer number (5117760).

Almost surely, 2^20471034 is an apocalyptic number.

20471034 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20471034 is a wasteful number, since it uses less digits than its factorization.

20471034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411844.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 20471034 is about 4524.4926787431. The cubic root of 20471034 is about 273.5562194833.

Adding to 20471034 its reverse (43017402), we get a palindrome (63488436).

It can be divided in two parts, 2047 and 1034, that added together give a triangular number (3081 = T₇₈).

The spelling of 20471034 in words is "twenty million, four hundred seventy-one thousand, thirty-four".