4008481 has 4 divisors (see below), whose sum is σ = 4244292. Its totient is φ = 3772672.

The previous prime is 4008461. The next prime is 4008523. The reversal of 4008481 is 1848004.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1934881 + 2073600 = 1391^2 + 1440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4008481 is a prime.

It is a super-2 number, since 2×4008481² = 32135839854722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4008421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117880 + ... + 117913.

It is an arithmetic number, because the mean of its divisors is an integer number (1061073).

Almost surely, 2^4008481 is an apocalyptic number.

It is an amenable number.

4008481 is a deficient number, since it is larger than the sum of its proper divisors (235811).

4008481 is a wasteful number, since it uses less digits than its factorization.

4008481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235810.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 4008481 is about 2002.1191273248. The cubic root of 4008481 is about 158.8522155695.

It can be divided in two parts, 4008 and 481, that added together give a square (4489 = 67²).

The spelling of 4008481 in words is "four million, eight thousand, four hundred eighty-one".