240220401 has 8 divisors (see below), whose sum is σ = 337151520. Its totient is φ = 151718112.

The previous prime is 240220397. The next prime is 240220423. The reversal of 240220401 is 104022042.

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

It is not a de Polignac number, because 240220401 - 2² = 240220397 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (240220451) 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, 2107140 + ... + 2107253.

It is an arithmetic number, because the mean of its divisors is an integer number (42143940).

Almost surely, 2^240220401 is an apocalyptic number.

It is an amenable number.

240220401 is a deficient number, since it is larger than the sum of its proper divisors (96931119).

240220401 is a wasteful number, since it uses less digits than its factorization.

240220401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4214415.

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 240220401 is about 15499.0451641383. The cubic root of 240220401 is about 621.6366755300.

Adding to 240220401 its reverse (104022042), we get a palindrome (344242443).

The spelling of 240220401 in words is "two hundred forty million, two hundred twenty thousand, four hundred one".