42400104100 has 18 divisors (see below), whose sum is σ = 92008226114. Its totient is φ = 16960041600.

The previous prime is 42400104059. The next prime is 42400104161. The reversal of 42400104100 is 140100424.

It can be written as a sum of positive squares in 3 ways, for example, as 670602816 + 41729501284 = 25896^2 + 204278^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212000421 + ... + 212000620.

Almost surely, 2^42400104100 is an apocalyptic number.

It is an amenable number.

42400104100 is an abundant number, since it is smaller than the sum of its proper divisors (49608122014).

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

42400104100 is a wasteful number, since it uses less digits than its factorization.

42400104100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424001055 (or 424001048 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 42400104100 its reverse (140100424), we get a palindrome (42540204524).

The spelling of 42400104100 in words is "forty-two billion, four hundred million, one hundred four thousand, one hundred".