240402101 has 4 divisors (see below), whose sum is σ = 240921792. Its totient is φ = 239882412.

The previous prime is 240402089. The next prime is 240402131. The reversal of 240402101 is 101204042.

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 a cyclic number.

It is not a de Polignac number, because 240402101 - 2¹⁸ = 240139957 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 (240402131) 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, 259151 + ... + 260076.

It is an arithmetic number, because the mean of its divisors is an integer number (60230448).

Almost surely, 2^240402101 is an apocalyptic number.

It is an amenable number.

240402101 is a deficient number, since it is larger than the sum of its proper divisors (519691).

240402101 is an equidigital number, since it uses as much as digits as its factorization.

240402101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 519690.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 240402101 is about 15504.9057075495. The cubic root of 240402101 is about 621.7933690179.

Adding to 240402101 its reverse (101204042), we get a palindrome (341606143).

The spelling of 240402101 in words is "two hundred forty million, four hundred two thousand, one hundred one".