20624601 has 8 divisors (see below), whose sum is σ = 27623680. Its totient is φ = 13687632.

The previous prime is 20624581. The next prime is 20624603. The reversal of 20624601 is 10642602.

It is a happy number.

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

It is not a de Polignac number, because 20624601 - 2¹⁵ = 20591833 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20624603) 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, 14746 + ... + 16083.

It is an arithmetic number, because the mean of its divisors is an integer number (3452960).

Almost surely, 2^20624601 is an apocalyptic number.

It is an amenable number.

20624601 is a deficient number, since it is larger than the sum of its proper divisors (6999079).

20624601 is a wasteful number, since it uses less digits than its factorization.

20624601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31055.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 20624601 is about 4541.4316024796. The cubic root of 20624601 is about 274.2385591756.

The spelling of 20624601 in words is "twenty million, six hundred twenty-four thousand, six hundred one".