20473134 has 64 divisors (see below), whose sum is σ = 48148992. Its totient is φ = 5734400.

The previous prime is 20473129. The next prime is 20473139. The reversal of 20473134 is 43137402.

It is an interprime number because it is at equal distance from previous prime (20473129) and next prime (20473139).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20473139) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79534 + ... + 79790.

It is an arithmetic number, because the mean of its divisors is an integer number (752328).

Almost surely, 2^20473134 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20473134, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24074496).

20473134 is an abundant number, since it is smaller than the sum of its proper divisors (27675858).

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

20473134 is a wasteful number, since it uses less digits than its factorization.

20473134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 361.

The product of its (nonzero) digits is 2016, while the sum is 24.

The square root of 20473134 is about 4524.7247430092. The cubic root of 20473134 is about 273.5655733247.

The spelling of 20473134 in words is "twenty million, four hundred seventy-three thousand, one hundred thirty-four".