3028431 has 24 divisors (see below), whose sum is σ = 4912000. Its totient is φ = 1625472.

The previous prime is 3028427. The next prime is 3028453. The reversal of 3028431 is 1348203.

It is a happy number.

It is not a de Polignac number, because 3028431 - 2² = 3028427 is a prime.

It is a super-2 number, since 2×3028431² = 18342788643522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3028398 and 3028407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3028471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5820 + ... + 6318.

Almost surely, 2^3028431 is an apocalyptic number.

3028431 is a deficient number, since it is larger than the sum of its proper divisors (1883569).

3028431 is a wasteful number, since it uses less digits than its factorization.

3028431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543 (or 526 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 3028431 is about 1740.2387767200. The cubic root of 3028431 is about 144.6791319388.

The spelling of 3028431 in words is "three million, twenty-eight thousand, four hundred thirty-one".