3455881 has 15 divisors (see below), whose sum is σ = 4115153. Its totient is φ = 2900040.

The previous prime is 3455873. The next prime is 3455887. The reversal of 3455881 is 1885543.

The square root of 3455881 is 1859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 1713481 + 1742400 = 1309^2 + 1320^2 .

It is not a de Polignac number, because 3455881 - 2³ = 3455873 is a prime.

It is a super-2 number, since 2×3455881² = 23886226972322, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (19200) is a multiple of the sum of its prime divisors (24).

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (3455887) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 265831 + ... + 265843.

Almost surely, 2^3455881 is an apocalyptic number.

3455881 is the 1859-th square number.

3455881 is the 930-th centered octagonal number.

It is an amenable number.

3455881 is a deficient number, since it is larger than the sum of its proper divisors (659272).

3455881 is an frugal number, since it uses more digits than its factorization.

3455881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74 (or 24 counting only the distinct ones).

The product of its digits is 19200, while the sum is 34.

The cubic root of 3455881 is about 151.1887906595.

It can be divided in two parts, 345 and 5881, that added together give a palindrome (6226).

The spelling of 3455881 in words is "three million, four hundred fifty-five thousand, eight hundred eighty-one".