20026157 has 8 divisors (see below), whose sum is σ = 20502720. Its totient is φ = 19555360.

The previous prime is 20026151. The next prime is 20026177. The reversal of 20026157 is 75162002.

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

It is a cyclic number.

It is not a de Polignac number, because 20026157 - 2⁴ = 20026141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20026151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6032 + ... + 8742.

It is an arithmetic number, because the mean of its divisors is an integer number (2562840).

Almost surely, 2^20026157 is an apocalyptic number.

It is an amenable number.

20026157 is a deficient number, since it is larger than the sum of its proper divisors (476563).

20026157 is an equidigital number, since it uses as much as digits as its factorization.

20026157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2883.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 20026157 is about 4475.0594409460. The cubic root of 20026157 is about 271.5600451448.

Adding to 20026157 its reverse (75162002), we get a palindrome (95188159).

The spelling of 20026157 in words is "twenty million, twenty-six thousand, one hundred fifty-seven".