3428181 has 6 divisors (see below), whose sum is σ = 4951830. Its totient is φ = 2285448.

The previous prime is 3428143. The next prime is 3428209. The reversal of 3428181 is 1818243.

It can be written as a sum of positive squares in only one way, i.e., 3294225 + 133956 = 1815^2 + 366^2 .

It is not a de Polignac number, because 3428181 - 2¹⁰ = 3427157 is a prime.

It is a super-2 number, since 2×3428181² = 23504849937522, which contains 22 as substring.

3428181 is a modest number, since divided by 8181 gives 342 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3428141) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 190446 + ... + 190463.

It is an arithmetic number, because the mean of its divisors is an integer number (825305).

Almost surely, 2^3428181 is an apocalyptic number.

It is an amenable number.

3428181 is a deficient number, since it is larger than the sum of its proper divisors (1523649).

3428181 is a wasteful number, since it uses less digits than its factorization.

3428181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380915 (or 380912 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 3428181 is about 1851.5347687797. The cubic root of 3428181 is about 150.7837642909.

The spelling of 3428181 in words is "three million, four hundred twenty-eight thousand, one hundred eighty-one".