20240659 has 8 divisors (see below), whose sum is σ = 21930480. Its totient is φ = 18606336.

The previous prime is 20240653. The next prime is 20240663. The reversal of 20240659 is 95604202.

20240659 = 442² + 443² + ... + 527².

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 20240659 - 2³ = 20240651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20240651) 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, 13114 + ... + 14575.

It is an arithmetic number, because the mean of its divisors is an integer number (2741310).

Almost surely, 2^20240659 is an apocalyptic number.

20240659 is a deficient number, since it is larger than the sum of its proper divisors (1689821).

20240659 is a wasteful number, since it uses less digits than its factorization.

20240659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27749.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 20240659 is about 4498.9619913931. The cubic root of 20240659 is about 272.5261720507.

The spelling of 20240659 in words is "twenty million, two hundred forty thousand, six hundred fifty-nine".