3904481 has 16 divisors (see below), whose sum is σ = 4853760. Its totient is φ = 3065040.

The previous prime is 3904477. The next prime is 3904487. The reversal of 3904481 is 1844093.

It is a cyclic number.

It is not a de Polignac number, because 3904481 - 2² = 3904477 is a prime.

It is a super-2 number, since 2×3904481² = 30489943758722, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3904487) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3650 + ... + 4596.

It is an arithmetic number, because the mean of its divisors is an integer number (303360).

Almost surely, 2^3904481 is an apocalyptic number.

3904481 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

3904481 is a deficient number, since it is larger than the sum of its proper divisors (949279).

3904481 is a wasteful number, since it uses less digits than its factorization.

3904481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1004.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 3904481 is about 1975.9759613922. The cubic root of 3904481 is about 157.4663537769.

The spelling of 3904481 in words is "three million, nine hundred four thousand, four hundred eighty-one".