102440330 has 8 divisors (see below), whose sum is σ = 184392612. Its totient is φ = 40976128.

The previous prime is 102440323. The next prime is 102440339. The reversal of 102440330 is 33044201.

It can be written as a sum of positive squares in 2 ways, for example, as 101223721 + 1216609 = 10061^2 + 1103^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 102440299 and 102440308.

It is not an unprimeable number, because it can be changed into a prime (102440339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5122007 + ... + 5122026.

Almost surely, 2^102440330 is an apocalyptic number.

102440330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102440330 is a deficient number, since it is larger than the sum of its proper divisors (81952282).

102440330 is a wasteful number, since it uses less digits than its factorization.

102440330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10244040.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 102440330 is about 10121.2810454013. The cubic root of 102440330 is about 467.9042496543.

Adding to 102440330 its reverse (33044201), we get a palindrome (135484531).

The spelling of 102440330 in words is "one hundred two million, four hundred forty thousand, three hundred thirty".