405101412 has 72 divisors (see below), whose sum is σ = 1065573600. Its totient is φ = 134571456.

The previous prime is 405101407. The next prime is 405101423. The reversal of 405101412 is 214101504.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 397039 + ... + 398057.

Almost surely, 2^405101412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 405101412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (532786800).

405101412 is an abundant number, since it is smaller than the sum of its proper divisors (660472188).

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

405101412 is a wasteful number, since it uses less digits than its factorization.

405101412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1447 (or 1433 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 18.

The square root of 405101412 is about 20127.1312411879. The cubic root of 405101412 is about 739.9253710958.

Adding to 405101412 its reverse (214101504), we get a palindrome (619202916).

The spelling of 405101412 in words is "four hundred five million, one hundred one thousand, four hundred twelve".