7471228 has 36 divisors (see below), whose sum is σ = 14544432. Its totient is φ = 3351040.

The previous prime is 7471213. The next prime is 7471249. The reversal of 7471228 is 8221747.

It is a self number, because there is not a number n which added to its sum of digits gives 7471228.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26448 + ... + 26728.

It is an arithmetic number, because the mean of its divisors is an integer number (404012).

Almost surely, 2^7471228 is an apocalyptic number.

It is an amenable number.

7471228 is a deficient number, since it is larger than the sum of its proper divisors (7073204).

7471228 is a wasteful number, since it uses less digits than its factorization.

7471228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342 (or 323 counting only the distinct ones).

The product of its digits is 6272, while the sum is 31.

The square root of 7471228 is about 2733.3547153635. The cubic root of 7471228 is about 195.4927533546.

It can be divided in two parts, 7 and 471228, that multiplied together give a triangular number (3298596 = T₂₅₆₈).

The spelling of 7471228 in words is "seven million, four hundred seventy-one thousand, two hundred twenty-eight".