20162454 has 32 divisors (see below), whose sum is σ = 44034144. Its totient is φ = 6117120.

The previous prime is 20162449. The next prime is 20162489. The reversal of 20162454 is 45426102.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3924 + ... + 7464.

It is an arithmetic number, because the mean of its divisors is an integer number (1376067).

Almost surely, 2^20162454 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20162454, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22017072).

20162454 is an abundant number, since it is smaller than the sum of its proper divisors (23871690).

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

20162454 is a wasteful number, since it uses less digits than its factorization.

20162454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3632.

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 20162454 is about 4490.2621304329. The cubic root of 20162454 is about 272.1747273396.

Adding to 20162454 its reverse (45426102), we get a palindrome (65588556).

The spelling of 20162454 in words is "twenty million, one hundred sixty-two thousand, four hundred fifty-four".