4033881 has 10 divisors (see below), whose sum is σ = 6026042. Its totient is φ = 2689200.

The previous prime is 4033853. The next prime is 4033891. The reversal of 4033881 is 1883304.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 793881 = 1800^2 + 891^2 .

It is not a de Polignac number, because 4033881 - 2⁵ = 4033849 is a prime.

It is a super-2 number, since 2×4033881² = 32544391844322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4033831) 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 9 ways as a sum of consecutive naturals, for example, 24820 + ... + 24981.

Almost surely, 2^4033881 is an apocalyptic number.

It is an amenable number.

4033881 is a deficient number, since it is larger than the sum of its proper divisors (1992161).

4033881 is an equidigital number, since it uses as much as digits as its factorization.

4033881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49813 (or 49804 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 4033881 is about 2008.4523892789. The cubic root of 4033881 is about 159.1870351512.

The spelling of 4033881 in words is "four million, thirty-three thousand, eight hundred eighty-one".