3440428 has 6 divisors (see below), whose sum is σ = 6020756. Its totient is φ = 1720212.

The previous prime is 3440419. The next prime is 3440429. The reversal of 3440428 is 8240443.

It is not an unprimeable number, because it can be changed into a prime (3440429) 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 as a sum of consecutive naturals, namely, 430050 + ... + 430057.

Almost surely, 2^3440428 is an apocalyptic number.

It is an amenable number.

3440428 is a deficient number, since it is larger than the sum of its proper divisors (2580328).

3440428 is a wasteful number, since it uses less digits than its factorization.

3440428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860111 (or 860109 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 3440428 is about 1854.8390765778. The cubic root of 3440428 is about 150.9631066395.

The spelling of 3440428 in words is "three million, four hundred forty thousand, four hundred twenty-eight".