3428445 has 32 divisors (see below), whose sum is σ = 5796864. Its totient is φ = 1728000.

The previous prime is 3428437. The next prime is 3428471. The reversal of 3428445 is 5448243.

3428445 = 16² + 17² + ... + 217².

It is not a de Polignac number, because 3428445 - 2³ = 3428437 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33895 + ... + 33995.

It is an arithmetic number, because the mean of its divisors is an integer number (181152).

Almost surely, 2^3428445 is an apocalyptic number.

It is an amenable number.

3428445 is a deficient number, since it is larger than the sum of its proper divisors (2368419).

3428445 is a wasteful number, since it uses less digits than its factorization.

3428445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213.

The product of its digits is 15360, while the sum is 30.

The square root of 3428445 is about 1851.6060596142. The cubic root of 3428445 is about 150.7876347489.

The spelling of 3428445 in words is "three million, four hundred twenty-eight thousand, four hundred forty-five".