404212042100 has 36 divisors (see below), whose sum is σ = 877192960224. Its totient is φ = 161675078880.

The previous prime is 404212042093. The next prime is 404212042109. The reversal of 404212042100 is 1240212404.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (404212042109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1679537 + ... + 1905063.

Almost surely, 2^404212042100 is an apocalyptic number.

It is an amenable number.

404212042100 is an abundant number, since it is smaller than the sum of its proper divisors (472980918124).

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

404212042100 is a wasteful number, since it uses less digits than its factorization.

404212042100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243464 (or 243457 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 404212042100 its reverse (1240212404), we get a palindrome (405452254504).

The spelling of 404212042100 in words is "four hundred four billion, two hundred twelve million, forty-two thousand, one hundred".