4081404 has 12 divisors (see below), whose sum is σ = 9523304. Its totient is φ = 1360464.

The previous prime is 4081397. The next prime is 4081421. The reversal of 4081404 is 4041804.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×4081404² = 33315717222432, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 170047 + ... + 170070.

Almost surely, 2^4081404 is an apocalyptic number.

It is an amenable number.

4081404 is an abundant number, since it is smaller than the sum of its proper divisors (5441900).

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

4081404 is a wasteful number, since it uses less digits than its factorization.

4081404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340124 (or 340122 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4081404 is about 2020.2484995663. The cubic root of 4081404 is about 159.8097217200.

The spelling of 4081404 in words is "four million, eighty-one thousand, four hundred four".