102440223240 has 32 divisors (see below), whose sum is σ = 307320670080. Its totient is φ = 27317392832.

The previous prime is 102440223233. The next prime is 102440223251. The reversal of 102440223240 is 42322044201.

It is a super-2 number, since 2×102440223240² (a number of 23 digits) contains 22 as substring.

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 102440223240.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 426834144 + ... + 426834383.

It is an arithmetic number, because the mean of its divisors is an integer number (9603770940).

Almost surely, 2^102440223240 is an apocalyptic number.

102440223240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102440223240 is an abundant number, since it is smaller than the sum of its proper divisors (204880446840).

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

102440223240 is a wasteful number, since it uses less digits than its factorization.

102440223240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853668541 (or 853668537 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 102440223240 its reverse (42322044201), we get a palindrome (144762267441).

The spelling of 102440223240 in words is "one hundred two billion, four hundred forty million, two hundred twenty-three thousand, two hundred forty".