240024401 has 4 divisors (see below), whose sum is σ = 240712500. Its totient is φ = 239336304.

The previous prime is 240024391. The next prime is 240024419. The reversal of 240024401 is 104420042.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 104420042 = 2 ⋅52210021.

It can be written as a sum of positive squares in 2 ways, for example, as 117700801 + 122323600 = 10849^2 + 11060^2 .

It is a cyclic number.

It is not a de Polignac number, because 240024401 - 2²⁶ = 172915537 is a prime.

It is a super-2 number, since 2×240024401² = 115223426150817602, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 240024401.

It is not an unprimeable number, because it can be changed into a prime (240024461) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 343526 + ... + 344223.

It is an arithmetic number, because the mean of its divisors is an integer number (60178125).

Almost surely, 2^240024401 is an apocalyptic number.

It is an amenable number.

240024401 is a deficient number, since it is larger than the sum of its proper divisors (688099).

240024401 is an equidigital number, since it uses as much as digits as its factorization.

240024401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688098.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 240024401 is about 15492.7209037018. The cubic root of 240024401 is about 621.4675614716.

Adding to 240024401 its reverse (104420042), we get a palindrome (344444443).

The spelling of 240024401 in words is "two hundred forty million, twenty-four thousand, four hundred one".