102402441240 has 64 divisors (see below), whose sum is σ = 335135266560. Its totient is φ = 24824833920.

The previous prime is 102402441217. The next prime is 102402441247. The reversal of 102402441240 is 42144204201.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 102402441240.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102402441247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38787484 + ... + 38790123.

It is an arithmetic number, because the mean of its divisors is an integer number (5236488540).

Almost surely, 2^102402441240 is an apocalyptic number.

102402441240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102402441240 is an abundant number, since it is smaller than the sum of its proper divisors (232732825320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102402441240 is a wasteful number, since it uses less digits than its factorization.

102402441240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77577632 (or 77577628 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 102402441240 its reverse (42144204201), we get a palindrome (144546645441).

The spelling of 102402441240 in words is "one hundred two billion, four hundred two million, four hundred forty-one thousand, two hundred forty".