240020417 has 8 divisors (see below), whose sum is σ = 295409856. Its totient is φ = 189906192.

The previous prime is 240020413. The next prime is 240020419. The reversal of 240020417 is 714020042.

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

It is not a de Polignac number, because 240020417 - 2² = 240020413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (240020413) 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, 1318703 + ... + 1318884.

It is an arithmetic number, because the mean of its divisors is an integer number (36926232).

Almost surely, 2^240020417 is an apocalyptic number.

It is an amenable number.

240020417 is a deficient number, since it is larger than the sum of its proper divisors (55389439).

240020417 is a wasteful number, since it uses less digits than its factorization.

240020417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2637607.

The product of its (nonzero) digits is 448, while the sum is 20.

The square root of 240020417 is about 15492.5923266573. The cubic root of 240020417 is about 621.4641230150.

Adding to 240020417 its reverse (714020042), we get a palindrome (954040459).

The spelling of 240020417 in words is "two hundred forty million, twenty thousand, four hundred seventeen".