20426653 has 8 divisors (see below), whose sum is σ = 23156000. Its totient is φ = 17862768.

The previous prime is 20426647. The next prime is 20426689. The reversal of 20426653 is 35662402.

It is a happy number.

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 20426653 - 2¹⁷ = 20295581 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 (20426603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41103 + ... + 41596.

It is an arithmetic number, because the mean of its divisors is an integer number (2894500).

Almost surely, 2^20426653 is an apocalyptic number.

It is an amenable number.

20426653 is a deficient number, since it is larger than the sum of its proper divisors (2729347).

20426653 is a wasteful number, since it uses less digits than its factorization.

20426653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82731.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 20426653 is about 4519.5854898431. The cubic root of 20426653 is about 273.3583873855.

The spelling of 20426653 in words is "twenty million, four hundred twenty-six thousand, six hundred fifty-three".