3028440 has 32 divisors (see below), whose sum is σ = 9085680. Its totient is φ = 807552.

The previous prime is 3028427. The next prime is 3028453. The reversal of 3028440 is 448203.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3028427) and next prime (3028453).

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, 12499 + ... + 12738.

Almost surely, 2^3028440 is an apocalyptic number.

3028440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3028440 is an abundant number, since it is smaller than the sum of its proper divisors (6057240).

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

3028440 is a wasteful number, since it uses less digits than its factorization.

3028440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25251 (or 25247 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 3028440 is about 1740.2413625701. The cubic root of 3028440 is about 144.6792752595.

The spelling of 3028440 in words is "three million, twenty-eight thousand, four hundred forty".