3140028 has 18 divisors (see below), whose sum is σ = 7937384. Its totient is φ = 1046664.

The previous prime is 3139993. The next prime is 3140041. The reversal of 3140028 is 8200413.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 43576 + ... + 43647.

Almost surely, 2^3140028 is an apocalyptic number.

It is an amenable number.

3140028 is an abundant number, since it is smaller than the sum of its proper divisors (4797356).

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

3140028 is a wasteful number, since it uses less digits than its factorization.

3140028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87233 (or 87228 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 3140028 is about 1772.0124153064. The cubic root of 3140028 is about 146.4348703106.

The spelling of 3140028 in words is "three million, one hundred forty thousand, twenty-eight".