102244240 has 40 divisors (see below), whose sum is σ = 271679040. Its totient is φ = 35054976.

The previous prime is 102244237. The next prime is 102244243. The reversal of 102244240 is 42442201.

It is an interprime number because it is at equal distance from previous prime (102244237) and next prime (102244243).

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×102244240² = 20907769226355200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102244243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90730 + ... + 91849.

It is an arithmetic number, because the mean of its divisors is an integer number (6791976).

Almost surely, 2^102244240 is an apocalyptic number.

102244240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102244240 is an abundant number, since it is smaller than the sum of its proper divisors (169434800).

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

102244240 is a wasteful number, since it uses less digits than its factorization.

102244240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182599 (or 182593 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 102244240 is about 10111.5893903975. The cubic root of 102244240 is about 467.6055067999.

Adding to 102244240 its reverse (42442201), we get a palindrome (144686441).

The spelling of 102244240 in words is "one hundred two million, two hundred forty-four thousand, two hundred forty".