20420601 has 8 divisors (see below), whose sum is σ = 27378624. Its totient is φ = 13538160.

The previous prime is 20420591. The next prime is 20420627. The reversal of 20420601 is 10602402.

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

It is not a de Polignac number, because 20420601 - 2¹³ = 20412409 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20420651) 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, 18261 + ... + 19346.

It is an arithmetic number, because the mean of its divisors is an integer number (3422328).

Almost surely, 2^20420601 is an apocalyptic number.

It is an amenable number.

20420601 is a deficient number, since it is larger than the sum of its proper divisors (6958023).

20420601 is a wasteful number, since it uses less digits than its factorization.

20420601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37791.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 20420601 is about 4518.9159098173. The cubic root of 20420601 is about 273.3313878836.

The spelling of 20420601 in words is "twenty million, four hundred twenty thousand, six hundred one".