3451728 has 40 divisors (see below), whose sum is σ = 10191808. Its totient is φ = 986112.

The previous prime is 3451699. The next prime is 3451759. The reversal of 3451728 is 8271543.

It is a junction number, because it is equal to n+sod(n) for n = 3451695 and 3451704.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4801 + ... + 5472.

Almost surely, 2^3451728 is an apocalyptic number.

It is an amenable number.

3451728 is an abundant number, since it is smaller than the sum of its proper divisors (6740080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3451728 is a wasteful number, since it uses less digits than its factorization.

3451728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10291 (or 10285 counting only the distinct ones).

The product of its digits is 6720, while the sum is 30.

The square root of 3451728 is about 1857.8826658323. The cubic root of 3451728 is about 151.1282042051.

The spelling of 3451728 in words is "three million, four hundred fifty-one thousand, seven hundred twenty-eight".