102042202440 has 64 divisors (see below), whose sum is σ = 306164064960. Its totient is φ = 27207924480.

The previous prime is 102042202433. The next prime is 102042202453. The reversal of 102042202440 is 44202240201.

It is a super-2 number, since 2×102042202440² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1025367 + ... + 1120473.

It is an arithmetic number, because the mean of its divisors is an integer number (4783813515).

Almost surely, 2^102042202440 is an apocalyptic number.

102042202440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102042202440 is an abundant number, since it is smaller than the sum of its proper divisors (204121862520).

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

102042202440 is a wasteful number, since it uses less digits than its factorization.

102042202440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104062 (or 104058 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

Adding to 102042202440 its reverse (44202240201), we get a palindrome (146244442641).

The spelling of 102042202440 in words is "one hundred two billion, forty-two million, two hundred two thousand, four hundred forty".