240400101 has 4 divisors (see below), whose sum is σ = 320533472. Its totient is φ = 160266732.

The previous prime is 240400091. The next prime is 240400123. The reversal of 240400101 is 101004042.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 240400101 - 2¹⁵ = 240367333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240400001) 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, 40066681 + ... + 40066686.

It is an arithmetic number, because the mean of its divisors is an integer number (80133368).

Almost surely, 2^240400101 is an apocalyptic number.

It is an amenable number.

240400101 is a deficient number, since it is larger than the sum of its proper divisors (80133371).

240400101 is an equidigital number, since it uses as much as digits as its factorization.

240400101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80133370.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 240400101 is about 15504.8412116990. The cubic root of 240400101 is about 621.7916446983.

Adding to 240400101 its reverse (101004042), we get a palindrome (341404143).

The spelling of 240400101 in words is "two hundred forty million, four hundred thousand, one hundred one".