102440411 has 4 divisors (see below), whose sum is σ = 104119824. Its totient is φ = 100761000.

The previous prime is 102440407. The next prime is 102440431. The reversal of 102440411 is 114044201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102440411 - 2² = 102440407 is a prime.

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 102440411.

It is not an unprimeable number, because it can be changed into a prime (102440431) 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, 839615 + ... + 839736.

It is an arithmetic number, because the mean of its divisors is an integer number (26029956).

Almost surely, 2^102440411 is an apocalyptic number.

102440411 is a deficient number, since it is larger than the sum of its proper divisors (1679413).

102440411 is an equidigital number, since it uses as much as digits as its factorization.

102440411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1679412.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 102440411 is about 10121.2850468703. The cubic root of 102440411 is about 467.9043729788.

Adding to 102440411 its reverse (114044201), we get a palindrome (216484612).

The spelling of 102440411 in words is "one hundred two million, four hundred forty thousand, four hundred eleven".