20126454 has 8 divisors (see below), whose sum is σ = 40252920. Its totient is φ = 6708816.

The previous prime is 20126437. The next prime is 20126459. The reversal of 20126454 is 45462102.

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

20126454 is an admirable number.

It is a super-2 number, since 2×20126454² = 810148301228232, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20126459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1677199 + ... + 1677210.

It is an arithmetic number, because the mean of its divisors is an integer number (5031615).

Almost surely, 2^20126454 is an apocalyptic number.

20126454 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.

20126454 is a wasteful number, since it uses less digits than its factorization.

20126454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3354414.

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

The square root of 20126454 is about 4486.2516648088. The cubic root of 20126454 is about 272.0126417856.

Adding to 20126454 its reverse (45462102), we get a palindrome (65588556).

The spelling of 20126454 in words is "twenty million, one hundred twenty-six thousand, four hundred fifty-four".