20469064 has 96 divisors (see below), whose sum is σ = 50232960. Its totient is φ = 7728000.

The previous prime is 20469049. The next prime is 20469067. The reversal of 20469064 is 46096402.

It is not an unprimeable number, because it can be changed into a prime (20469067) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202614 + ... + 202714.

It is an arithmetic number, because the mean of its divisors is an integer number (523260).

Almost surely, 2^20469064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20469064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25116480).

20469064 is an abundant number, since it is smaller than the sum of its proper divisors (29763896).

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

20469064 is a wasteful number, since it uses less digits than its factorization.

20469064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 168 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 20469064 is about 4524.2749695393. The cubic root of 20469064 is about 273.5474441076.

The spelling of 20469064 in words is "twenty million, four hundred sixty-nine thousand, sixty-four".