20426654 has 8 divisors (see below), whose sum is σ = 30659160. Its totient is φ = 10206936.

The previous prime is 20426647. The next prime is 20426689. The reversal of 20426654 is 45662402.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4712 + ... + 7940.

It is an arithmetic number, because the mean of its divisors is an integer number (3832395).

Almost surely, 2^20426654 is an apocalyptic number.

20426654 is a deficient number, since it is larger than the sum of its proper divisors (10232506).

20426654 is a wasteful number, since it uses less digits than its factorization.

20426654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6394.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 20426654 is about 4519.5856004727. The cubic root of 20426654 is about 273.3583918463.

The spelling of 20426654 in words is "twenty million, four hundred twenty-six thousand, six hundred fifty-four".