240405401 has 2 divisors, whose sum is σ = 240405402. Its totient is φ = 240405400.

The previous prime is 240405383. The next prime is 240405419. The reversal of 240405401 is 104504042.

240405401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (240405383) and next prime (240405419).

It can be written as a sum of positive squares in only one way, i.e., 145829776 + 94575625 = 12076^2 + 9725^2 .

It is a cyclic number.

It is not a de Polignac number, because 240405401 - 2⁶ = 240405337 is a prime.

It is not a weakly prime, because it can be changed into another prime (240405421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120202700 + 120202701.

It is an arithmetic number, because the mean of its divisors is an integer number (120202701).

Almost surely, 2^240405401 is an apocalyptic number.

It is an amenable number.

240405401 is a deficient number, since it is larger than the sum of its proper divisors (1).

240405401 is an equidigital number, since it uses as much as digits as its factorization.

240405401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 240405401 is about 15505.0121251162. The cubic root of 240405401 is about 621.7962141244.

Adding to 240405401 its reverse (104504042), we get a palindrome (344909443).

The spelling of 240405401 in words is "two hundred forty million, four hundred five thousand, four hundred one".