3128408 has 16 divisors (see below), whose sum is σ = 6211080. Its totient is φ = 1472128.

The previous prime is 3128401. The next prime is 3128443. The reversal of 3128408 is 8048213.

It is a super-2 number, since 2×3128408² = 19573873228928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3128401) 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 3 ways as a sum of consecutive naturals, for example, 11366 + ... + 11637.

Almost surely, 2^3128408 is an apocalyptic number.

It is an amenable number.

3128408 is a deficient number, since it is larger than the sum of its proper divisors (3082672).

3128408 is a wasteful number, since it uses less digits than its factorization.

3128408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23026 (or 23022 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 3128408 is about 1768.7306182684. The cubic root of 3128408 is about 146.2540145488.

The spelling of 3128408 in words is "three million, one hundred twenty-eight thousand, four hundred eight".