240420001 has 8 divisors (see below), whose sum is σ = 255678120. Its totient is φ = 225285888.

The previous prime is 240419983. The next prime is 240420071. The reversal of 240420001 is 100024042.

It can be written as a sum of positive squares in 4 ways, for example, as 76580001 + 163840000 = 8751^2 + 12800^2 .

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 240420001 - 2⁷ = 240419873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (240420071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26986 + ... + 34771.

It is an arithmetic number, because the mean of its divisors is an integer number (31959765).

Almost surely, 2^240420001 is an apocalyptic number.

It is an amenable number.

240420001 is a deficient number, since it is larger than the sum of its proper divisors (15258119).

240420001 is a wasteful number, since it uses less digits than its factorization.

240420001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62003.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 240420001 is about 15505.4829334658. The cubic root of 240420001 is about 621.8088012528.

Adding to 240420001 its reverse (100024042), we get a palindrome (340444043).

The spelling of 240420001 in words is "two hundred forty million, four hundred twenty thousand, one".