4181406 has 32 divisors (see below), whose sum is σ = 9018240. Its totient is φ = 1288224.

The previous prime is 4181393. The next prime is 4181413. The reversal of 4181406 is 6041814.

It is a super-2 number, since 2×4181406² = 34968312273672, which contains 22 as substring.

It is a Curzon number.

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, 4476 + ... + 5328.

It is an arithmetic number, because the mean of its divisors is an integer number (281820).

Almost surely, 2^4181406 is an apocalyptic number.

4181406 is an abundant number, since it is smaller than the sum of its proper divisors (4836834).

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

4181406 is a wasteful number, since it uses less digits than its factorization.

4181406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 920.

The product of its (nonzero) digits is 768, while the sum is 24.

The square root of 4181406 is about 2044.8486496560. The cubic root of 4181406 is about 161.1044164039.

The spelling of 4181406 in words is "four million, one hundred eighty-one thousand, four hundred six".