100402332440 has 16 divisors (see below), whose sum is σ = 225905248080. Its totient is φ = 40160932960.

The previous prime is 100402332391. The next prime is 100402332449. The reversal of 100402332440 is 44233204001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100402332449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1255029116 + ... + 1255029195.

It is an arithmetic number, because the mean of its divisors is an integer number (14119078005).

Almost surely, 2^100402332440 is an apocalyptic number.

100402332440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

100402332440 is an abundant number, since it is smaller than the sum of its proper divisors (125502915640).

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

100402332440 is a wasteful number, since it uses less digits than its factorization.

100402332440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2510058322 (or 2510058318 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 100402332440 its reverse (44233204001), we get a palindrome (144635536441).

The spelling of 100402332440 in words is "one hundred billion, four hundred two million, three hundred thirty-two thousand, four hundred forty".