100402402412440 has 64 divisors (see below), whose sum is σ = 239196788415360. Its totient is φ = 37798104330240.

The previous prime is 100402402412401. The next prime is 100402402412489. The reversal of 100402402412440 is 44214204204001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100402402412399 and 100402402412408.

It is a congruent number.

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, 59739444 + ... + 61397116.

It is an arithmetic number, because the mean of its divisors is an integer number (3737449818990).

Almost surely, 2^{100402402412440} is an apocalyptic number.

100402402412440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100402402412440 is an abundant number, since it is smaller than the sum of its proper divisors (138794386002920).

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

100402402412440 is a wasteful number, since it uses less digits than its factorization.

100402402412440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1746772 (or 1746768 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 100402402412440 its reverse (44214204204001), we get a palindrome (144616606616441).

The spelling of 100402402412440 in words is "one hundred trillion, four hundred two billion, four hundred two million, four hundred twelve thousand, four hundred forty".